W Deklaracji o przerywaniu ciąży z 1974, Kościół Katolicki argumentuje, że zygota jest człowiekiem ponieważ posiada ludzki genotyp. Artykuł przedstawia logiczną analizę tej argumentacji. Pokazuje, że argumentacja ta jest w dużym stopniu wadliwa. Tomizm pełni tu funkcję uprawo-mocnienia. Entymematyczne założenia tomistyczne są niezbędne, by w ogóle możliwe było przejście od przesłanek do wniosku. Okazuje się ponadto, że argumentacja ta zakłada tomistyczną interpretację pojęć biologicznych, która jest niezgodna ze współczesną wiedzą biologiczną. Twierdzenie zawarte w Deklaracji nie zostało więc skutecznie uargumentowane na (...) gruncie biologii, a wręcz wydaje się, że biologia je wyklucza. Jest ono możliwe jedynie jako twierdzenie metafizyczne i wyłącznie na gruncie pewnych metafizyk. (shrink)

1. Overview -/- 1.1 Main Divisions When, if ever, is it morally permissible to end the life of a human embryo or fetus, and why? As regards the first of these questions, there are extreme anti-abortion views, according to which abortion is prima facie seriously wrong from conception onwards – or at least shortly thereafter; there are extreme permissibility views, according to which abortion is always permissible in itself; and there are moderate views, according to which abortion is sometimes permissible, (...) and sometimes not. -/- Moderate views appeal to a variety of considerations in support of the view that abortion is sometimes justified, but these fall into four main categories. First, there are cases where the developing human is seriously defective in some way – perhaps such that it will not have a life that is worth living. Secondly, there are cases where continuation of pregnancy would involve serious risks to the life or health of the woman. Thirdly, there are moderate positions according to which the developing human initially does not have serious moral status, or a right to life, but acquires such status at some point before birth. Finally, it is often held that abortion is justified in the case of rape. -/- With the exception of the last consideration, moderate views assume that the moral status of the developing human is crucial with respect to the permissibility of abortion. Moreover, this is a natural assumption that was shared by all sides until the publication in 1971 of Judith Jarvis Thomson’s article “A Defense of Abortion,” in which she argued that abortion is permissible even if one assumes, for the sake of argument, that human embryos and fetuses have a right to life. Thus we have one of the great divides in the philosophical discussion of abortion: Is the moral status of the developing human generally decisive with regard to the moral permissibility of abortion or not? -/- 1.2 The Moral Status of the Developing Human: Thomson and Boonin Thomson’s article evoked many critical responses, along with some defenses, which I have described elsewhere (2013; “Thomson’s Attempt to Defend Abortion in General”). Crucial, however, is David Boonin’s defense (2003), which contains responses to all of the important objections directed against the attempt to show that one can defend abortion while granting that human embryos and fetuses have a right to life fully on a par with that of normal adult human beings. -/- Boonin’s impressive efforts notwithstanding, I do not think that this way of defending an extreme permissibility view is successful. The crucial issue is whether it is morally permissible intentionally to bring into existence an entity with a right to life in a situation where one knows that it will not survive without one’s assistance, and then to refrain from providing that assistance. An especially forceful way of arguing that this is not permissible is found in an article by Richard Langer (1993, 351-2), who argues that if this were permissible, it would follow not only that abortion was justified, but also that it is permissible to allow one’s children to die, some years after birth, simply because one no longer wishes to care for them. -/- 1.3 Moderate Views Moderate positions on abortion raise a number of issues that, for reasons of space, I cannot address here. Some of these depend on the issue of the moral status of the developing human, and defending a moderate view requires showing that both extreme anti-abortion and extreme moral permissibility views concerning the moral status of humans before birth are incorrect. I have argued elsewhere (1983, 285-302, and 2009, 59-63) that the prospects of doing this are not promising. -/- As regards permissibility in the case of rape, everything depends upon whether, as Thomson contends (1971), there is no obligation to be a good Samaritan, rather than merely a minimally decent one, and so no obligation for a woman to remain pregnant to save the life of a being that she was not responsible for bringing into existence. Finally, on the one hand, in cases where the woman will die if an abortion is not performed, virtually all moral philosophers, with the exception of those who embrace the moral view advanced by the Catholic Church in encyclicals by Pope Pius XI (1930) and Pope Paul VI (1968), agree that abortion is morally permissible, while, on the other hand, if the situation is one where there is only some risk that the woman will die if an abortion is not performed, or where the threat is not to the woman’s life, but only to her health, then the situation does seem clear-cut if one assumes that the embryo or fetus has a right to life. -/- 1.4 Extreme Anti-Abortion Views Very different arguments are offered for the view that abortion is in itself never permissible. First of all, in popular discussions, appeal is frequently made to the mere fact of membership in the biologically defined species Homo sapiens, but among those who are philosophically knowledgeable, this line of argument is almost invariably rejected, for reasons that I have set out elsewhere (Tooley, 2009, 21-35). -/- Secondly, appeal is also made to the idea that humans have immaterial minds, or souls – for example, by Stephen Schwartz (1990), J. P. Moreland and Scott B. Rae (2000), Norman Ford (2002), and Francis J. Beckwith, (2005). The postulation of immaterial minds or souls is, however, open to strong objections, since there is excellent evidence that human psychological powers have their categorical bases in neural structures, rather than in an immaterial substance (Tooley, 2009, 15-19). In addition, the postulation of an immaterial soul, conceived of along Thomistic lines, is on a collision course with biology, since such an immaterial soul is held to govern a human’s life processes and biological development. -/- Thirdly, there is the ‘substantial identity’ argument, advanced for example by Patrick Lee (2004), and which claims that an entity possesses a right to life by virtue of the type of substance it is. This view is exposed to a number of strong objections, however, among them the fact that it leads to the unacceptable consequence that a human that has suffered upper brain death still has a right to life (Tooley, 2009, 51-9). -/- The upshot is that most philosophers do not find any of the preceding three lines of argument for an extreme anti-abortion position promising. The focus, accordingly, has been elsewhere – namely, on arguments claiming that human embryos and fetuses have serious moral status, or a right to life, because they have the potentiality for developing those psychological capacities – for thought, self-consciousness, rationality, and so on – that seem clearly relevant to a being’s moral status. -/- In what follows, then, I shall confine my discussion to what seems to me the most crucial issue bearing upon the moral status of abortion, namely, that between, on the one hand, a potentiality account of moral status, and, on the other, the type of approach most commonly appealed to in support of an extreme permissibility position on abortion, namely, a personhood account of the right to life. -/- One of the earliest defenders of the view that potentialities give something a right to life was Jim Stone in his article, “Why Potentiality Matters,” where Stone argues for the conclusion, “we have a prima facie duty not to deprive them of the conscious goods which it is their nature to realize” (1987, 821). Stone’s discussion, however, attracted much less attention than an article published two years later by Don Marquis, entitled “Why Abortion is Immoral.” The latter is one of the most interesting articles on abortion, as well as one of the most discussed––and deservedly so. In what follows, then, I shall focus upon it. -/- My discussion is organized as follows. In section 2, I summarize Marquis’s account of the wrongness of killing. Then, in section 3, I set out an alternative account, one in which the concept of a neo-Lockean person is central. Sections 4, 5, and 6 are then devoted to criticisms of Marquis’s approach, all of which also support the alternative, rights-based, neo-Lockean personhood account. (shrink)

In addressing bioethical issues at the beginning of human life, such as abortion, human embryonic stem cell research, and therapeutic cloning, a primary concern is to establish when a developing human embryo or fetus can be considered a “person”; for it is typically held that only persons are the subjects of moral rights, such as a “right to life.” The 13th century philosopher and theologian Thomas Aquinas defines a person as “an individual substance of a rational nature” (ST Ia.29.1); he (...) further asserts that all human beings are persons (ST Ia.16.12 ad 1), but that an embryo or fetus is not a human being until its body is informed by a “rational soul.” Aquinas’s account of human embryogenesis has been generally rejected today due to its dependence upon medieval biological information. A number of scholars, however, have attempted to combine Aquinas’s basic metaphysical account of human nature with current embryological data to develop a contemporary Thomistic account of a human being’s beginning. (shrink)

In this paper I have not, of course, presented all the embryological data that can be collected from the Talmudic and Midrashic literature. More details can be found in Julius Preuss' classical work on biblical and talmudic medicine, now available in Fred Rosner's English translation and in a French M.D. thesis by Martine Michel.75 I also did not present any data on teratology, and did not deal with the very rich Jewish mystical lore, the Cabbala. But a few comments are (...) in order here about the material on embryology.There are very few original ideas in the Talmudic corpus on embryology, but it is obvious that the Sages were well aware of the Greek and Roman theories on embryology.The fact that the Talmud is a compilation that was built up slowly, during several centuries, explains why the information recorded in it cannot be ascribed solely to one school of thought or one clear-cut influence.When a definite problem was difficult to solve because there were many different theories about it, the Sages based their opinion on a famous experiment that seemed to offer guarantees of validity. This was the case with the controversial problem of the formation of the embryo and its sexual differentiation, where the Sages made use of an experiment allegedly initiated by Cleopatra.The Sages were ready to discuss scientific problems with non-Jewish scholars and even to accept their arguments. This was the case with the important topic of the time of the entry of the soul into the embryo. But the legal conclusions drawn from the Sages' opinion were not consistent with those declared by Churth Fathers such as Tertullian. Embryotomy, for instance, was permitted by Jewish law.Wide interest, scholarly discussions, suggestive descriptions and readiness to inquire and to obtain detailed information characterized the Talmudic discussions of embryology.In conclusion, I quote a Talmudic text that reviews the whole process of embryological development through the sequence of prayers of a faithful Jew who learns that his wife is expecting a baby.The first three days, [he should pray to the Lord] that the seed should not putrefy.From the third to the fortieth day: that the child should be a male.From the fortieth day to the third month: that there should not occur any superfetation, which could lead the first embryo to be a fetus compressus.From the third to the sixth month: that an abortion should not occur.From the sixth to the ninth month: that the birth should be without problems.76. (shrink)

I consider the argument, thought to clinch the moral case for use of a human embryo solely as a means, that only a human individual can be a person, because it can happen at any time before formation of the primitive streak that an embryo splits into monozygotic twins, no embryo in which the primitive streak has not formed is a human individual, and therefore no embryo in which the primitive streak has not formed is a person. I explore the (...) following proffered arguments for : indivisibility is a necessary condition of individuality, nonidentity of an embryo with successor twins impugns the embryo’s individuality, and totipotency of an embryo’s constituents is inconsistent with the embryo’s being a human individual. These arguments are tested and found wanting; so too is an alternative to , the argument that indivisibility is intrinsic to personhood. Whereupon is unsustained. In search of ways to rehabilitate the nonindividuation argument, I canvass alternative metaphysical views and inquire further into biological individuality, but find that the argument cannot be saved. I conclude by analyzing where this leaves matters concerning the morality of embryo use. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:AQUINAS AND THE PRESENCE OF THE HUMAN RATIONAL SOUL IN THE EARLY EMBRYO STEPHEN J. HEANEY University of Saint Thomas Saint Paul, Minnesota FIRST IN RELATION to evolution and more recently in relation to abortion, there has been a recurrence of Thomas Aquinas's arguments for the thesis that the human rational soul is not present in the human body immediately upon conception. Since soul and body must be proportioned (...) to each other, it is argued, a rational soul cannot be present until the human body is formed enough to support it, i.e., until there are organs in place through which the rational soul can begin to exercise its proper powers. The question of this paper is : Given modern embryological knowledge, would Aquinas be likely to come to the same conclusion? In regards to such a question Rudolph Gerber has made the following observation: Some scholastic philosophers and theologians insist that it is simply impossible to determine exactly when rational animation occurs. This belief, however, has deterred few prophets in either camp from stating their positions with dogmatic certainty.1 The authors whose interpretations we will be encountering in this paper have generally been less than dogmatic, but they have been insistent on the rectitude of their respective positions. I will attempt to do likewise : I am in no position to be dogmatic (after all, how will we test the thesis?), but I believe I have good grounds for the conclusion I have reached. 1Rudolph Gerber, "When Is the Human Soul Infused?" Laval theologique et philosophique 22 (1966) : 235. 19 20 STEPHEN J. HEANEY We begin with certain positions which both sides in the debate agree upon : the human intellectual soul is produced immediately by God and not through another agency since, as immaterial, it cannot come from a change in matter; 2 further, the human soul is infused, that is, produced directly in a body as the body's natural perfection.8 As we shall see in the texts, Aquinas argues that this latter position requires that, while the embryo is alive, it is alive first through the power of a vegetative soul, then a sensitive soul, and finally, when the body is organized enough to be able to perform the functions demanded of it, by a rational soul, this ultimate form replacing the previous one. This theory of delayed animation--or, more to the point of this paper, the view that Aquinas would today still hold such a theory-has several contemporary proponents. The most prominent spokesman is Joseph Donceel, S.J. He has presented his arguments in a pair of articles' which we will now review. In the earlier article, Donceel blames a latent Cartesianism for the proliferation of supporters of immediate hominization. If you hold, with Descartes, that the soul and body are two separate substances, that the soul is not the form of the body, then there is " no longer any reason for rejecting the presence of a real human soul in a virtual human body," 5 i.e., in matter that has the potential to be a human body (with human shape) but is not one yet. Thus, the soul could act as the efficient cause of the body, molding the matter into the organs proper to human beings. This, however, is not Aquinas's view, Donceel argues; "he did not admit that an actual human sould could be coupled with a virtual human body," 6 because "a substantial form can exist only in and with a human body." 7 If we accept the Cartesian 2 S. Th. I, 90, 3, corp. s S. Th. I, 90, 4, corp. 'Joseph Donceel, S.J., "Abortion: Mediate v. Immediate Animation," Continuum 5 (1967): 167-71; "Immediate Animation and Delayed Hominization," Theological Studies 31 (1970) : 76-105. B Donceel, "Abortion," p. 169. e Ibid., p. 168. T Ibid. THE HUMAN SOUL IN THE EARLY EMBRYO 21 explanation, we would be equating the soul with the architect or builders of a building. These, however, are not the building's form; that exists only in the finished building. Rather, Donceel says that the soul is related to the body as sphericity to a ball. An embryo is like... (shrink)

In contemporary discussions of abortion, both sides argue well-worn positions, particularly concerning the question, When does human life begin? Though often invoked by the Catholic Church for support, Thomas Aquinas in fact held that human life begins after conception, not at the moment of union. But his overall thinking on questions of how humans come into being, and cease to be, is more subtle than either side in this polarized debate imagines. Fabrizio Amerini--an internationally renowned scholar of medieval philosophy--does justice (...) to Aquinas's views on these controversial issues. Some pro-life proponents hold that Aquinas's position is simply due to faulty biological knowledge, and if he knew what we know today about embryology, he would agree that human life begins at conception. Others argue that nothing Aquinas could learn from modern biology would have changed his mind. Amerini follows the twists and turns of Aquinas's thinking to reach a nuanced and detailed solution in the final chapters that will unsettle familiar assumptions and arguments. Systematically examining all the pertinent texts and placing each in historical context, Amerini provides an accurate reconstruction of Aquinas's account of the beginning and end of human life and assesses its bioethical implications for today. This major contribution is available to an English-speaking audience through translation by Mark Henninger, himself a noted scholar of medieval philosophy. (shrink)

Hominization theory speculates on the process and chronology of a human embryo’s ensoulment. Aristotle, a key ancient Greek thinker, presented his own hominization theory based on his hylemorphic metaphysics and pioneering researches in embryology. Thomas Aquinas, a medieval philosopher and theologian, built his Christian and Catholic hominization theory on the foundations laid down by Aristotle. The contemporary Roman Catholic Church, with its own prolife, anti-abortion and anticontraception agenda, modified the Aristotelian and Thomistic hominization theories by allegedly benchmarking on recent (...) developments in human embryology. This paper uses the archeological and genealogical methods, as developed by the French poststructuralist and postmodernist philosopher Michel Foucault, in reexamining these three hominization theories as discourses, in comparing and contrasting their epistemic contexts, and in peering into their respective genealogies. Contrary to common assumptions, these three hominization theories have very few elements in common and are actually divergent. The underpinning intention of this paper is to demonstrate the strengths and weaknesses of the contemporary Roman Catholic Church’s hominization theory. (shrink)

Abortion remains a highly controversial issue in many countries and subject to intense public debate. The aim of this chapter is to summarize the most prominent assumptions and arguments concerning the moral and legal dimensions of abortion on which this debate rests. Where the moral justifiability of abortion is concerned, this chapter focuses on arguments relating to the moral status of the fetus or embryo, the notion of personhood, the biological development of the embryo or fetus, and the moral relevance (...) of specific points in the developmental process. In terms of the legal aspects, we consider concepts and principles invoked at law, principally, the rights of pregnant women and the medical concept of viability. For each moral and legal position in the abortion debate, we provide an overview of the principal assumptions and arguments and acknowledge the main criticisms. (shrink)

Over the last several decades many abortion advocates have attempted to spread confusion and doubt concerning the beginnings of human life. A particularly cynical strategy has involved invoking the authority historical thinkers, especially Doctors of the Church, to support the claim that (at least) early abortion does not constitute homicide because the early embryo is not yet fully human. Anyone familiar with context of these historical thinkers should realize that their specific judgments regarding abortion are now obsolete in virtue of (...) their primitive scientific understanding of embryology. In what follows, I summarize the Aristotelian embryology that explains why these historical thinkers held the views that they did. I then explore how we should best understand their broader ethical views in light of our vastly superior contemporary knowledge of human embryology. Unsurprisingly, it turns out that if we apply the contemporary empirical findings of embryology the very same metaphysical and ethical principles informing the thinking of the historical figures supports the prolife position. (shrink)

In addressing bioethical issues at the beginning of human life, such as abortion, in vitro fertilization, and embryonic stem cell research, one primary concern regards establishing when a developing human embryo or fetus can be considered a person. Thomas Aquinas argues that an embryo or fetus is not a human person until its body is informed by a rational soul. Aquinas's explicit account of human embryogenesis has been generally rejected by contemporary scholars due to its dependence upon medieval biological data, (...) which has been far surpassed by current scientific research. A number of scholars, however, have attempted to combine Aquinas's basic metaphysical account of human nature with current embryological data to develop a contemporary Thomistic account of a human person's beginning. In this article, I discuss two recent interpretations in which it is argued that a human person does not begin to exist until a fetus has developed a functioning cerebral cortex. (shrink)

This book provides extensive and critical engagement with some of the most recent and compelling arguments favoring abortion choice. It features original essays from leading and emerging philosophers, bioethicists and medical professionals that present philosophically sophisticated and novel arguments against abortion choice. The chapters in this book are divided into three thematic sections. The first set of essays focuses primarily on unborn human individuals--zygotes, embryos and fetuses. In these chapters it is argued, for example, that human organisms begin to exist (...) at conception and that zygotes, embryos and fetuses are persons. These chapters also explore questions about whether or not zygotes, embryos and fetuses are part of their mothers' bodies. The second set of essays focuses primarily on elective abortion and the debates surrounding it. These chapters consider whether or not opponents of abortion are commonly hypocritical, how opponents of abortion should think about adoption, how emerging technologies may affect the current debate and whether or not those participating in the debate should rely on analogies to support their case. Finally, the third set of essays shifts focus from the legal and moral status of elective abortion to its place in medical practice. In these chapters it is argued that elective abortion embodies a kind of ableism, and that elective abortion is medically unnecessary, harmful to women's mental health and that telemedicine abortion poses significant risks to women's health. Agency, Pregnancy and Persons offers an up-to-date examination of unborn human beings, the debates surrounding elective abortion and the place of elective abortion within medical practice. It will be of interest to medical professionals and those who work in philosophy, bioethics and medical ethics alike. (shrink)

It has been argued that killing persons is wrong because it deprives them of future experiences. Some opponents of abortion argue that the same apples to potential persons—fetuses, zygotes, embryos, etc.—so that to destroy them is as wrong as killing a person. Phil Gosselin rejects this position, employing the reductio argument that if it were so, contraception would be equally wrong, since it destroys potential persons that are gamete pairs. I argue in this paper that Gosselin’s position on the ontological (...) status of the “victim” of contraception, the gamete pair, is flawed in such a way that his conclusion that there is no morally relevant difference between what is destroyed by abortion and what is destroyed by contraception fails. A gamete pair is ontologically different from a fetus; “victims” of contraception and victims of abortion are not significantly analogous, and the reductio that depends upon their similarity for its force is unsuccessful. (shrink)

‘When did I, a human person, begin to exist?’ In developing an answer to this question, I utilize a Thomistic framework, which holds that the human person is a composite of a biological organism and an intellective soul. Eric Olson and Norman Ford both argue that the beginning of an individual human biological organism occurs at the moment when implantation of the zygote in the uterus occurs and the ‘primitive streak’ begins to form. Prior to this point, there does not (...) exist an individual human organism, but a cluster of biological cells which has the potential to split and develop as one or more separate human organisms (identical twinning). Ensoulment (the instantiation of a human intellective soul in biological matter) does not occur until the point of implantation. This conception of the beginning of human personhood has moral implications concerning the status of pre‐implantation biological cell clusters. A new understanding of the beginning of human personhood entails a new understanding of the morality of certain medical procedures which have a direct affect on these cell clusters which contain human DNA. Such procedures discussed in this article are embryonic stem cell research, in vitro fertilization, procured abortion, and the use of abortifacient contraceptives. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:BOOK REVIEWS 551 Human Embryo Research: Yes or No?. By CIBA FOUNDATION. London: Tavistock: 1987. Pp. xv + 232. $39.95 (cloth). In 1984 a governmental commission formed under the directorship of Dame Mary Warnock studied proposed legislation for experimentation on human embryos for research purposes. It concluded that such experimentation should not be permitted ·after the fourteenth day of gestation. This book records a symposium conducted under the sponsorship (...) of the CIBA foundation, an international scientific and educational organization which promotes research into biomedical and chemical research. The purpose of the symposium was to determine whether the guidelines set forth by the Warnock commission were legitimate and whether new criteria for allowing embryo r.esearch should be established. The book consists of eleven papers presented at a symposium on the ethics of embryo research along with panel discussions about the papers. Technically, embryo research only concerns experimentation with human products of conception after the fourteenth gestational day. The first seven papers describe contemporary embryo research dealing with the diagnosis and mechanisms of infertility, its ti;eatment by in vitro fertilization, the diagnosis of genetic disease, the causes and avoidance of congenital malformations, and the improvement of contraception. The final four papers deal with the issues of the status of the human embryo in d:ffierent world religions, the moral arguments against human embryo research, and public attitudes on human embryo research. The scientific papers are quite detailed, and they provided a good deal of information about the contemporary state of embryo research. But the papers on the ethics of human embryo research are rather partisan, and they do not adequately approach the difficult human and ethical issues involved in embryo research. One gains the impression from this book that the conference was heavily weighted in favor of those who sought virtually unqualified and unrestricted moral and legal permission for human.embryo research. The scientific papers seemed to go out of their way to argue that there was an unbreakable continuum in the process of transmitting life such that it could not be determined when human life began. For example, Professor Teresa Iglesias's suggestion that a new and distinct human life began when the process of fertilization began, and when the newly formed genetic material came to govern the development of the organism, rceeived little acknowledgment. No papers were presented rejecting nontherapeutic research on human embryos, and.the papers presented by J. W. Bowker and by Bernard Williams argued in behalf of the moral licitness of unspecified forms of embryo research. Bowker claimed that there was no consensus to be found 55~ BOOK REVIEWS among the various world religions on the moral status of the human embryo. He surveyed various religions such as Buddhism and concluded that the arguments in favor of the humanity or personhood of the embryo were not strong or persuasive. His point should not be accepted without caution, however, for he did not consider the claims made by western traditions such as Catholicism in behalf of the personhood of the embryo. 'F:or the claims of an oriental religion such as Buddhism are not as persuasive with Western, rationalist, liberal minds as they are with orientals. Bowker argues that religious claims about the personhood of the unborn ';are weak since we do not claim that larvae are full grown fish or that acorns are oak trees. This is true, but on the other hand, we do not say that horse embryos are vegteables or pigs. Implied in Bowker's claim that the embryo is not a human being or a human person is the assumption that at some point in the gestation process the embryo undergoes a "species-transfer" or "class-transfer" from the biological category of non-human or non-personal to human and personal. This is difficult to accept as there is no precedent in other mammals for such a species or class transfer. Equine, bovine, and canine embryos are not considered to be anything than other than of the species of horse, pig, or dog, and there is no reason to believe that they engage in some sort of species transfer. And he does not explain why the human case alone exhibits this... (shrink)

It is useful on the occasion of the 21st anniversary of the ‘Cyborg Manifesto’ not only to reconsider its lessons in the context of what is frequently described as the re-engineering of ‘life itself’, but to look at Haraway’s earlier work on embryos. In this article I begin with Haraway’s analysis of embryology in the 1970s to suggest her cyborg embryo was already there, and has, if anything, gained relevance in today’s embryo-strewn society. I argue further, as the title (...) suggests, that the cyborg embryo has been crucial in defining our path to what I am calling here, building on Haraway’s notion of trans from Modest_Witness, ‘transbiology’ - broadly meaning stem cell research, cloning, tissue engineering and regenerative medicine. To illustrate this argument I draw on recent ethnographic fieldwork in a new stem cell derivation facility in the UK built adjacent to an IVF surgery. Using this example, I explore the important and paradoxical role of IVF in the emergence of stem cell science, cloning and transbiology, suggesting that Haraway’s analysis remains crucial to understanding the ironic and contradictory, and unexpectedly generative, circumstances through which the IVF-stem cell interface - the door to transbiology - came into being. (shrink)

A number of philosophers maintain that the destruction of an embryo in the first 2 weeks after fertilization is not morally problematic as it is metaphysically impossible for any human organism to then have existed. We contend that the typical adult human organism was once a zygote so there is no metaphysical shortcut to justify early abortion. We show that five arguments against human organisms ever having been zygotes fail. All of the arguments have to do with one variant or (...) another of the zygote or early embryo dividing. They do not provide any reason to believe that since some adult organisms are not identical to zygotes due to earlier divisions, none could have been. (shrink)

In various places we have defended the position that a new human organism, that is, an individual member of the human species, comes to be at fertilization, the union of the spermatozoon and the oocyte. This individual organism, during the ordinary course of embryological development, remains the same individual and does not undergo any further substantial change, unless monozygotic twinning, or some form of chimerism occurs. Recently, in this Journal Jason Morris has challenged our position, claiming that recent findings in (...) reproductive and stem cell biology have falsified our view. He objects to our claim that a discernible substantial change occurs at conception, giving rise to the existence of a new individual of the human species. In addition, he objects to our claim that the embryo is an individual, a unified whole that persists through various changes, and thus something other than a mere aggregate of cells. Morris raises a number of objections to these claims. However, we will show that his arguments overlook key data and confuse biological, metaphysical, and ethical questions. As a result, his attempts to rebut our arguments fail. (shrink)

In a poem setting forth the way things are in nature, it is fitting for Lucretius to address, among many other phenomena, human conception and embryonic determination. With an eye toward ethics, Lucretius demonstrates how sexual reproduction at the seminal level can be explained by Epicurean atomism. In this paper, I am concerned with the biological ‘how’ of conception as explained inDe Rerum Natura(=DRN) but also with the ethical ‘therefore’ for Lucretius’ readership and (over)estimations of male autonomy. For modern audiences (...) with a basic grasp of procreation that includes sperm supplied by a male and egg supplied by a female, encountering Lucretius’ verses on women contributing semen (semina) to the process of conception can be surprising (4.1209–62). The idea of female semen may give us pause as we calibrate it with our understanding of eggs and ovulation, but Lucretius, in his time, was not advancing some novel theory. Wading into established debates on male-only or joint male-female semen production and gendered insemination (that is, who produces semen and whose semen is active at conception), Lucretius sides with those promulgating mutuality for both questions (for example Democritus [DK 24 A13]) and rejects Aristotle's representative exclusivist claim of male activity vs female passivity (τὸ ἄρρεν ἐστὶν ὡς κινοῦν καὶ ποιοῦν, τὸ δὲ θῆλυ ὡς παθητικόν,Gen. an.729a28–30; cf. 726a30–6). That is to say, a sexually mature female, like her male counterpart, emits semen that has determining potency in the formation of a human embryo (Lucr. 4.1209–62). Although the discharge and activity of female semen is the focus of this paper, my investigation is not aQuellenforschungor historical survey of Greco-Roman ideas about women's contributions to insemination and fertility, since others have treated these matters extensively. I concentrate rather on how Lucretius employs the concept of female semen in terms of his poetics in Book 4 and what I see as an ethical argument against the domineering nature of Roman masculinity. The problem of female semen, from the point of view of Lucretius’ Roman male audience, is that it is potentially costly to men because it rivals and threatens their status from the physiological to the discursive level. Iain Lonie broaches the same issue from Greek perspectives. (shrink)

The argument from potentiality for embryo protection relies on the assumption of a specific developmental potential of human embryos: as human embryos under normal conditions naturally developing into beings whose strong moral status is uncontroversial, namely into human persons, they likewise enjoy strong moral status. In my paper, I endeavour to spell out the ontological foundations of the argument from potentiality and to discuss them critically in the light of new empirical findings in embryology. Particular attention is hereby paid (...) to recent attempts to analyse the relevant notion of potentiality in terms of dispositions possessed by human embryos. I argue that, putting aside inappropriate essentialist speculations, there is no straightforward disposition of an embryo to become a person; such a disposition, if any, being rather successively generated in a multi-factored, highly context-sensitive process of biological development. (shrink)

This article is a response by the author of Defending Life, Francis Beckwith, to Kevin Corcoran’s critical review of that book. In his review Corcoran maintains that Beckwith provides only a “typical” genetic code argument for the zygote’s individual humanity, and that Beckwith fails to show that there exists an individual human organism that subsists from conception and develops into a mature version of itself. Beckwith argues that Corcoran is mistaken on both counts.

Determining the personhood of the human embryo is critical to advancing an informed and reasoned public policy debate over abortion and human embryo research. Many defenders of life—the Vatican included—have withheld recognition of the personhood of the embryo in order to avoid making an explicitly philosophical statement. This essay considers current embryological evidence from a philosophical (i.e., Aristotelian-Thomistic) point of view. This essay also addresses certain contemporary and antithetical philosophical biases. A demonstration then shows that the embryo is the fully (...) formed human person’s initial stage of development consisting of a rational soul that possesses the power of intellect and a commensurate body that is capable of developing into the fully formed human person. National Catholic Bioethics Quarterly 9.4 (Winter 2009): 689–693. (shrink)

Skene and Parker1 raise a number of concerns about religious doctrine unduly influencing law and public policy through amicus curiae contributions to civil litigations or direct lobbying of politicians. Oakley2 picks this up in the same issue with an emphasis on the Roman Catholic Church’s interest in preventing the destruction of embryos for embryonic stem cell research. Skene, Parker, and Oakley seem to be concerned mostly with religious views having undue influence on public policy. My concern is the negative effect (...) that such Church influenced public policy may have on the progress of the biomedical research that is itself foundational to the debate. Oakley seems to be particularly incensed that, as he puts it: “Those who support a total ban on embryonic stem cell research sometimes talk as if theirs are the only views based on moral principle”.2 What seems to be at issue here though are not the moral principles of the sanctity and dignity of human life, but the application of those moral principles to biomedical research.The Roman Catholic Church has historically defended the sanctity and dignity of human life to varying degrees at different times. Human life for much of the past 2000 years was defined by the Church as the presence of the soul, which was thought at different times to appear at various different stages during development. Only recently, with the advent of modern biology, has the Roman Catholic Church shifted its position to claim that the fertilised egg also qualifies as the right sort of human life.3 It should be noted that this doctrinal change was fundamentally driven by developments in our understanding of embryology and not the process of ensoulment.The Church’s current position on the embryo is thus based not solely on Church doctrine but also on …. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:A NOTE ON THE RELATION OF PACIFISM AND JUST-WAR THEORY: IS THERE A THOMISTIC CONVERGENCE? 1 GABRIEL PALMER-FERNANDEZ Youngstown State University Youngstown, Ohio FOR CENTURIES, the moral analysis of war began with a consideration of a set of principles which together form the doctrine of the just-war and with a rejection of pacifism. However, several recent studies by Catholic moralists argue that pacifism and just-war theory have much in (...) common and converge in at least one morally important way-namely, they share a presumption against violence. In this note I want to consider whether or not classical just-war theory gives us reason to accept this claim. I will give evidence against it, and suggest that the "original just-war question," as James Turner Johnson calls it, does not begin with aprohibitive presumption or some equivalent constraint on action. If we are to speak of a presumption in classical just-war theory, it is that justice be done for the sake of the common good. Up to very recent times, those Christian denominations which Ernst Troeltsch called the "church-type" (Lutheran, Anglican, Calvinist, and Roman Catholic) upheld a " two-tiered " or "double" morality. A "vocational" pacifism was required of clerical ranks, and the individual Christian was obligated to take up arms for the sake of the common good. For example, prior to the Second Vatican Council, Roman Catholic teaching on war rejected conscientious objection to all war (i.e., pacifism) as an option for Catholics. Manuals of moral theology prior to Vatican 1 I wish to acknowledge the very helpful and detailed comments provided by Richard B. Miller to an earlier version of this paper. 247 248 GABRIEL PALMER-FERNANDEZ II did prohibit the soldier from fighting in an unjust war and made room for subjective doubt about the justice of a particular war. But the consensus among Catholic theologians was both wide and deep. Pacifism for individual Christians did not have any moral-theological justification. It was, in fact, a grave moral error. In spite of this, Vatican II called for a " completely fresh reappraisal of war." 2 The policy of obliterating whole cities enacted during World War II, coupled with the development of nuclear and other indiscriminate weapons of destruction (e.g., incapacitating gases, biological weapons, etc.) and the instability of superpower relations, created an unprecedented condition for which traditional teachings on war seemed woefully inadequate, if not morally dangerous. A new, more far-reaching perspective was needed. And this was to allow for individuals the pacifist option as a second and complementary moral doctrine alongside traditional teaching on war.3 As the American Catholic bishops said in their pastoral letter on war and peace : 2 Pastoral Constitution on the Church in the Modern World, in A. Flannery, 0.P., ed., Vatican Council II: The Conciliar and Post Conciliar Documents (Collegeville, Minn. : Liturgical Press, 1975), par. 80. 3 This development in contemporary Roman Catholic teaching on war and peace has been challenged with considerable force by George Weigel in what has become one of the most controversial studies on the subject. In Tranquillitas Ordinis: The Present Failure and Future Promise of American Catholic Thought on War and Peace (New York: Oxford University Press, 1987), Weigel advances several arguments which are meant to correct what he insists is a failure among Catholic ethicists in the U.S. to develop their tradition, and, indeed, an abandonment of their heritage. " At the level of moral theory," Weigel maintains, "the two classic positions [just-war theory and pacifism] are not reconcilable. The attempt to merge them... tends to corrupt both traditions. Pacifists end up making judgments on military strategy and tactics, and just-war theorists are held accountable to arguments they previously declined to accept.... The net result is to bifurcate morality and politics, and to abandon attempts to apply the tradition of reason to the limit case of the use of armed force in the defense of values-which is precisely the result Murray most feared in his strictures against moralism" (251). For David Hollenbach's rebuttal, see his review essay, "War and Peace in American Catholic Thought: A Heritage Abandoned? " Theological Studies 48 (1987) : 711-727... (shrink)

Alfred Mele’s zygote argument for incompatibilism is based on a case involving an agent in a deterministic world whose entire life is planned by someone else. Mele’s contention is that Ernie (the agent) is unfree and that normal determined agents are relevantly similar to him with regards to free will. In this paper, I examine four different ways of understanding this argument and then criticize each interpretation. I then extend my criticism to manipulation arguments in general. I conclude that the (...) zygote argument is no threat to compatibilism. (shrink)

Catholic ethicists faithful to the magisterium of the Church are currently divided on the permissibility of using methotrexate to treat ectopic pregnancies. This paper examines the defenses of Rev. Albert Moraczewski, OP, and Christopher Kaczor, who argue that its use is morally permissible, in an attempt to demonstrate that methotrexate constitutes a direct abortion by virtue of its object. Specifically, the paper challenges the claims that methotrexate is aimed at inhibiting pathological tissues, that the trophoblast is not an organ of (...) the embryo, and that direct removal of a nonviable fetus is not a direct abortion. National Catholic Bioethics Quarterly 14.4 : 625–635. (shrink)

Chemical embryology was born in 1931 with the publication of Chemical Embryology by Joseph Needham. In the following two decades it became an innovative research project aiming at the description of the construction of the embryological structure and differentiation in biochemical terms. This research programme produced a vast amount of experimental evidence and theories on the chemical dynamics of the embryo: particularly chemical characterization of the zygote and the developing embryo, the chemical exchanges between the nucleus and the (...) cytoplasm, the significance of subcellular structures, and the role and distribution of nucleic acids within the cell. From the 1950s on, a large part of these results came to be integrated into the empirical basis of molecular biology. However, the shift from chemical embryology to molecular embryology was not just a semantic shift but a deep theoretical change, produced by the introduction of a new model of scientific explanation, based on the transmission and expression of genetic information and opposed to the biochemical definition of life. (shrink)

Um argumento recorrente contra a liberalização do aborto parte do pressuposto de que, desde o momento da fertilização, seres humanos são indivíduos (no sentido de serem algo que necessariamente ocorre em uma entidade apenas). Nesse artigo, argumento que esse não é um caso a partir da possibilidade de geminação monozigótica e do fato de identidades serem necessárias. Defendo as premissas do argumento e discuto as possíveis interpretações de sua conclusão. Argumento que a interpretação completa da conclusão desse argumento está em (...) concordância com a conclusão de um argumento semelhante, que parte de noção de organismo. -/- ENGLISH: A common pro-life argument assumes that humans are individuals (in the sense that they necessarily occur in one entity only) from the moment of fertilization. In this paper, argue that this is not the case because of the possibility of monozygotic twinning and the necessity of identities. I will defend the premises of the argument and discuss the possible interpretations of its conclusion. I argue that the correct interpretation of the conclusion of this argument is in agreement with the conclusion of a similar arguments from the notion of organism. (shrink)

On 25 April 2002, the German Parliament has passed a strict new law referring to stem cell research. This law took effect on July 1, 2002. The so-called embryonic Stem Cell Act ( Stammzellgesetz — StZG ) permits the import of embryonic stem (ES) cells isolated from surplus IvF-embryos for research reasons. The production itself of ES cells from human blastocysts has been prohibited by the German Embryo Protection Act of 1990, with the exception of the use of ES cells (...) which exist already. The debate on the legitimate use of ES cells escalated, after the main German research funding agency, the Deutsche Forschungsgemeinschaft (DFG), unexpectedly published new guidelines recommending are stricted use of human ES cells for research. Meanwhile, the debate has ethically dividedsociety, political parties, government and church members into a group supporting and a group rejecting ES cell research. The arguments in favour of such a research can be summarized as arguments derived from a new ethics ofhealing calling for a therapeutic imperative, whereas the arguments against can be summarized as arguments violating the fundamental principle of human dignity as they imply the destruction of human embryos. This article willtry to present and evaluate various ethical arguments founded on the latest biological and medical data on the potential use of stem cell technologies. It will finally come to the conclusion that ES cell research is opposed to human dignity, since the procedures of isolating ES cells require the destruction and instrumentalization of human embryos. Human embryos are human beings at a very early stage of their development, fully possessing the ability of completing their development. At this very early stage, human embryos are extremely dependent and fragile, and thus vulnerable corporealities. Vulnerability and human dignity demand the protection of the embryo's corporeal integrity. Hence, this essay will try to propagate research with adult stem(AS) cells, a procedure which does not require the destruction of human embryos; with regard to the necessary plasticity, it should be emphasized that AS cells very much resemble ES cells. (shrink)

Abortion and embryo destruction prevent a future of value, but that does not make them wrong.Abortion involves the killing of a fetus. One bad thing about killing a fetus is that the fetus is deprived of a future of value. Think of all the things which make your life good and worth living: understanding the world, seeing your children grow into independent, intelligent, and happy people, watching a sunset over the hills, enjoying good times with friends. By killing the fetus, (...) we are depriving it of a future life likely to contain these things. And more. The fetus would likely grow to be a person who would have contributed to the world in many ways—bringing joy to its parents, happiness, and friendship to many. That person would have laboured for society and perhaps even discovered a cure for cancer or developed the first bionic eye.The loss of these possible futures is bad. It makes the killing of a fetus wrong. This is Don Marquis's argument against abortion.1 It is one of the best arguments against abortion which does not rest on theological premises.Another way of putting this is to say that we have a good reason not to kill a fetus. A reason for acting is a fact or circumstance forming a sufficient justification for an action. Or in this case, not to perform an action. We have all sorts of reasons for action. Our reasons often conflict. I may have a good reason to visit my mother and a good reason to take my children to the park. What we have most reason to do is what it is right to do. It is what we should do. If we have most reason not to perform an act, …. (shrink)

That abortion kills someone with a right-to-life has become easier to see since Roe v. Wade. Progress in scientific research and medical practice has made both birth and viability unrealistic criteria for demarcating between human life, which demands moral respect, and merely “potential life” which does not have moral or legal equivalency with maternal interest. The near ubiquity of sonograms has probably done more than intellectual arguments to convince the public that a real baby resides in the uterus by the (...) tenth week of pregnancy. Earlier and earlier prenatal medical interventions on behalf of the unborn patient confirm this impression, and DNA indubitably substantiates that a fertilized embryo is biologically identical to the individual who is born nine months later and who has an undeniable right not to be killed. (shrink)

Several states have recently adopted more restrictive abortion policies yet permit fertility clinics to create surplus IVF embryos. This essay examines this issue: Is it morally inconsistent to prohibit abortion yet permit surplus embryos to be used in fertility medicine? I consider various arguments that try to reconcile this tension. None succeed. Either one holds that embryos have full moral status, and opposes both abortion and surplus embryos, or one denies that embryos have full moral status, which would permit surplus (...) embryos to be used but would entail that some abortions should be permissible as well. (shrink)

This paper is an analysis of the relationship of social ethics and bioethics in Roman Catholic theology. The argument of the paper is that the character of both Catholic moral theology and ecclesiology shape the broadly defined interest of the church in bioethics. The paper examines the common elements of social ethics and bioethics in Catholic teaching, describes how ecclesiology shapes Catholic public policy and uses the examples of abortion and health care to illustrate the relationship of Catholic social thought (...) and bioethics. In developing the relationship of these two dimensions of Catholic moral argument the article highlights how the appeal to natural law categories differs in social ethics and bioethics and how the two topics are received differently in the theological community. It also seeks to illustrate how the premises of Catholic social ethics remain central to public positions taken on bioethics. Keywords: ecclesiology, moral theology, natural law, social ethics CiteULike Connotea Del.icio.us What's this? (shrink)

Abortion is a controversial and divisive topic. The paper gives a short review of the main approaches throughout the history of European thinking to this complex problem. Moral concerns about abortion often turn on the questions of when human life can be said to has began and what is the moral status of human embryo and fetus. The paper gives also an outline of several scientific and religious attempts to solve the problem.

Although two documents from the Congregation for the Doctrine of the Faith have given instruction on the moral problems of artificial reproductive technologies and the importance of respecting the lives of cryopreserved embryos, no definitive judgment has been made regarding the possibility of rescuing those embryos by means of embryo transfer into the uterus of a willing woman. This essay offers an analysis of the morality of embryo transfer in light of the ethical principles of St. Thomas Aquinas and argues (...) that the proper use of our generative potential is only safeguarded by being restricted to marital intercourse. The arguments of those who favor the adoption model are considered and rejected in light of a Thomistic analysis of the categories of paternity, maternity, and filiation. National Catholic Bioethics Quarterly 14.4 : 673–695. (shrink)

This is a critical study of Fabrizio Amerini’s recent book, ‘Aquinas on the Beginning and End of Human Life.’ It briefly summarizes the book’s main line of argument, and then raises some objections, principally to Amerini’s contention that St Thomas’s metaphysical views should lead the Thomistically-inclined philosopher to accept delayed hominization even given modern embryological knowledge. The topics discussed include abortion and euthanasia, although the first of these is dealt with at greater length. Issues related to personhood and personal identity (...) are also addressed in the context of the beginning and end of human life. (shrink)

A fresh explication of the Thomist justification of self-defense casts off the hobbles of the principle of double effects to find a more secure footing in the historicaldevelopment of subjective natural rights by medieval jurists, and a straight-forward application to the latent threat of death in childbirth posed by non-consensual pregnancy. By articulating the implicit Thomistic right to defensive abortion in terms of conditional rights bestowed in Creation as correlative to particular natural law duties, justly proportionate limits to defensive abortion (...) are identified, and balanced against the forfeited or reserved natural rights variously imputed to conceptus and embryo in non-consensual pregnancies. Subsequently, the varieties of involuntary consent are examined from a Thomist perspective with a view to their relevance in justifying recourse to a rehabilitated practice of defensive abortion when free and full consent to impregnation and childbirth is absent. (shrink)

At some point in the future – perhaps within the next few decades – it will be possible for foetuses to develop completely outside the womb. Ectogenesis, as this technology is called, raises substantial issues for the abortion debate. One such issue is that it will become possible for a woman to have an abortion, in the sense of having the foetus removed from her body, but for the foetus to be kept alive. We argue that while there is a (...) right to an abortion, there are reasons to doubt that there is a right to the death of the foetus. Our strategy in this essay is to consider and reject three arguments in favour of this latter right. The first claims that women have a right not to be biological mothers, the second that women have a right to genetic privacy, and the third that a foetus is one's property. Furthermore, we argue that it follows from rejecting the third claim that genetic parents also lack a right to the destruction of cryopreserved embryos used for in vitro fertilization. The conclusion that a woman possesses no right to the death of the foetus builds upon the claims that other pro-choice advocates, such as Judith Jarvis Thomson, have made. (shrink)

Overview * Part I: Introduction * Philip Appleman, Darwin: On Changing the Mind * Part II: Darwin’s Life * Ernst Mayr, Who Is Darwin? * Part III: Scientific Thought: Just before Darwin * Sir Gavin de Beer, Biology before the Beagle * Thomas Robert Malthus, An Essay on the Principle of Population * William Paley, Natural Theology * Jean Baptiste Pierre Antoine de Monet Lamarck, Zoological Philisophy * Charles Lyell, Principles of Geology * John Herschell, The Study of Natural Philosophy (...) * William Whewell, Astronomy and General Physics Considered with Reference to Natural Theology * Alfred Russel Wallace, On the Tendency of Varieties to Depart Indefinitely from the Original Type * Part IV: Selections from Darwin’s Work * The Voyage of the Beagle * o Chapter I. St. Jago-Cape de Verd Island o Chapter XVII. Galapagos Archipelago * On the Tendency of Species to Form Varieties; and On the Perpetuation of Varieties and Species by Natural Means of Selection * o I. Extract from an unpublished Work on Species, by C. Darwin, Esq.... o II.of Letter from C. Darwin, Esq., to Prof. Asa Gray, Boston, U.S., dated Down, September 5th, 1857 * An Historical Sketch of the Progress of Opinion on the Origin of Species, previously to the : Publication of This Work The Origin of Species * o Introduction o Chapter I. Variation under Domestication o Chapter II. Variation under Nature o Chapter III. Struggle for Existence o Chapter IV. Natural Selection o Chapter VI. Difficulties on Theory o Chapter IX. On the Imperfections of the Geological Record o Chapter XIII. Mutual Affinities of Organic Beings: Morphology: Embryology: Rudimentary Organs o Chapter XIV. Recapitulation and Conclusion * The Descent of Man * o Introduction o Chapter I. The Evidence of the Descent of Man from Some Lower Form o Chapter II. On the Manner of Development of Man from Some Lower Form o Chapter III. Comparison of the Mental Powers of Man and the Lower Animals o Chapter VI. On the Affinities and Genealogy of Man o Chapter VIII. Principles of Sexual Selection o Chapter XIX. Secondary Sexual Characters of Man o Chapter XX. Secondary Sexual Characters of Man-continued o Chapter XXI. General Summary and Conclusion * Part V: Darwin’s Influence on Science * THE VICTORIAN OPPOSITION TO DARWIN * o David L. Hull, Darwin and His Critics o Adam Sedgwick, Objections to Mr. Darwin’s Theory of the Origin of Species o Sir Richard Owen, Darwin on the Origin of Species o Fleeming Jenkin, Review of the Origin of Species * VICTORIAN SUPPORTERS OF DARWIN * o Joseph Dalton Hooker, Flora Tasmaniae o Thomas Henry Huxley, On the Relations of Man to the Lowe Animals o Charles Lyell, Principles of Geology o Alfred Russel Wallace, The Debt of Science to Darwin * DARWIN AND THE SHAPING OF MODERN SCIENCE * o Scientific Method in Evolution o National Academy of Sciences, Evolution and the Nature of Science o Richard Dawkins, Explaining the Very Improbable o Lewis Thomas, On the Uncertainty of Science o Noretta Koetge, Postmodernisms and the Problem of Scientific Literary o Richard Dawkins, Science and Sensibility o The Neo-Darwinian Synthesis o Peter Bowler, The Evolutionary Synthesis o The Human Genealogy o Adam Kuper, The Chosen Primate o Ian Tattersall, Out of Africa Again... and Again? o Stephen Jay Gould, The Human Difference o Punctuated Equilibrium o Stephen Jay Gould, [On Punctuated Equilibrium] o Niles Eldredge, The Great Stasis Debate o Rethinking Taxonomy o Kevin Padian, Darwin’s Views of Classification o David L. Hull, Cladistic Analysis o Kevin Padian and Luis M. Chiappe, Cladistics in Action: The Origin of Birds and Their Flight o Evolution as Observable Fact o James L. Gould and William T. Keeton with Carol Grant Gould, How Natural Selection Operates o Peter r. Grant, Natural Selection and Darwin’s Finches o John A. Endler, Natural Selection in the Wild * Part VI: Darwinian Patterns in Social Thought * COMPETITION AND COOPERATION * o Richard Hofstadter, The Vogue of Spencer o Andrew Carnegie, The Gospel of Wealth o Peter Kropotkin, Mutual Aid o Martin A. Nowak, Robert M. May, and Karl Sigmund, The Arithmetics of Mutual Help * NATURE AND NURTURE * o Edward O. Wilson, Sociobiology: The New Synthesis o Stephen Jay Gould, Biological Potentiality vs. Biological Determination o Barbara Ehrenreich and Janet McIntosh, The New Creationism: Biology under Attack * EVOLUTION AND GENDER * o Elizabeth Cady Stanton, The Woman’s Bible o Nancy Makepeace Tanner, On Becoming Human o Evelleen Richards, Darwin and the Descent of Woman o James Eli Adams, Woman Red in Tooth and Claw * EVOLUTION AND OTHER DISCIPLINES * o Edward O. Wilson, [On Consilience] o Randolph H. Nesse and George C. Williams, Evolution and the Origin of Disease o Steven Pinker, How the Mind Works o Steve Jones, The Set within the Skull * Part VII: Darwinian Influences in Philosophy and Ethics * John Dewey, The Influence of Darwin on Philosophy * Daniel C. Dennett, Darwin’s Dangerous Idea: Natural Selection as an Algorithmic Process * Michael Ruse Darwinian Epistemology * Thomas Henry Huxley, Evolution and Ethics * Julian Huxley, Evolutionary Ethics * Michael Ruse and Edward O. Wilson, The Evolution of Ethics * Frans de Waal, Good Natured: The Origin of Right and Wrong in Humans and Other Animals * Matt Ridley, The Origins of Virtue * Part VIII: Evolutionary Theory and Religious Theory * MAINSTREAM RELIGIOUS SUPPORT FOR EVOLUTION * o Pope John Paul II, Message to the Pontifical Academy of Sciences o Central Conference of American Rabbis, On Creationism in School Textbooks o United Presbyterian Church in the U.S.A., Evolution and Creationsim o The Lutheran World Federation, [Statement on Evolution] o The General Convention of the Episcopal Church, Resolution on Evolutionism and Creationism o Unitariuan Universalist Association, Resolution Opposing "Scientific Creationism" * FUNDAMENTALIST CREATIONISM * o Eugene C. Scott, Antievolution and Creationism in the United States o The Scopes Trial o Thomas McIver, Orthodox Jewish Creationists o Harun Yahya, [Islamic Creationism] o Seami Srila Prabhupada, [A Hare Krishna on Darwinian Evolution] o Institute for Creation Research, Tenets of Creationism o Henry M. Morris, Scientific Creationism o Thomas J. Wheeler, Review of Morris o Richard D. Sjolund and Betty McCollister, Evolution at the Grass Roots o Richard D. Sjolund, [Creationism versus Biotechnology] o Betty McCollister, [The Politics of Creationism] o Molleen Matsumara, What Do Christians Really Believe about Evolution? o National Center for Science Education, Seven Significant Court Decisions Regarding Evolution/Creation Issues * PERSONAL INCREDULITY AND ANTIEVOLUTIONISM * o Richard Dawkins, [The Argument from Personal Incredulity] o Phillip E. Johnson, Darwin on Trial o Eugenie C. Scott, Review of Johnson o Michael Behe, Darwin’s Black Box o Robert Dorit, Review of Behe o Michael Ruse, Darwin’s New Critics on Trial * SCIENTISTS’ OPPOSITION TO CREATIONISM * o American Association for the Advancement of Science, Forced Teaching of Creationist Beliefs in Public School Science Education o American Institute of Biological Sciences, Resolution Oposing Creationism in Science Courses o National Association of Biology Teachers, Statement on Teaching Evolution o National Academy of Sciences, Frequently Asked Questions about Evolution and the Nature of Science * FUNDAMENTALIST CREATIONISM AND THE VALUE OF SATIRE * o Michael Shermer, Genesis Revisted: A Scientific Creation Story o Philip Appleman, Darwin’s Ark * Part IX: Darwin and the Literary Mind * DARWIN’S LITERARY SENSIBILITY * o Charles Darwin, Autobiography o L. Robert Stevens, Darwin’s Humane Reading o George Levine, Darwin and Pain: Why Science Made Shakespeare Nauseating o Gillian Beer, Darwin’s Plots * DARWIN’S INFLUENCE ON LITERATURE * o Lionel Stevenson, Darwin among the Poets o George Levine, Darwin among the Novelists o Joseph Wood Krutch, The Tragic Fallacy o Herbert J. Muller, Modern Tragedy o Philip Appleman, Darwin-Sightings in Recent Literature. (shrink)

Debates on the moral status of human embryos have been highly and continuously controversial. For many, these controversies have turned into a fruitless scholastical endeavor. However, recent developments and insights in cellular biology have cast further doubt on one of the core points of dissent: the argument from potentiality. In this article we want to show in a nonscholastical way why this argument cannot possibly survive. Getting once more into the intricacies of status debates is a must in our eyes. (...) Not merely intellectual coherence but the standing and self-understanding of current stem cell research might profit from finally taking leave of the argument from potentiality. (shrink)

This study evaluates the ontological and ethical premises and presuppositions of three abortion theorists: Germain Grisez, Eike-Henner W. Kluge, and Michael Tooley. ;Grisez's argument that human embryos and fetuses are moral persons because moral rights are derived from moral value, and the full moral value of human adults who are moral persons is implicit in the living genetic mechanism of all human beings, is criticized on the basis of the tension in Aristotle's doctrine between the notion of essence as an (...) internal causitive principle, and as a set of observable qualities considered to be definitive of the nature of a living thing. However, David Wiggins' use of the semantical theory of natural kind terms of Hilary Putnam is suggested as a possible resolution. ;Kluge's argument that rational beings are moral persons because rational awareness has an absolute and intrinsic value, and that mature fetuses are moral persons because their neurological systems have become sufficiently complex to provide the present capability for rational awareness is criticized because he fails to show that mature fetuses do have such a present capability, and because his discussion of the relationship of potential being to actual being of living things wrongly presupposes that human gestation is analogous to the making of an artifact. ;Tooley's contrary argument that the right to life is not derivable from moral value but must, itself, be something violable, and that there is a conceptual connection between its violation and one's desire to continue to live, excludes fetuses and neonates because they lack the mental capability to desire to continue to live. Tooley's analysis is criticized as incomplete, and his argument as presupposing the existence of an essentially mentalistic self. ;The final chapter is a synthesis which considers the ontology of the development of personality or self, including the theories of Descartes, Locke and Wiggins. The conclusion is reached that theories which claim that a moral person "comes to be" as a fundamentally different kind of being at some point after conception, due to either morphological changes or the development of personality or self, entail dual principles of identity and, hence, are in danger of unintelligibility. (shrink)

The “Embryo Rescue Case” (ERC) refers to a thought experiment that is used to argue against the view that embryos have a right to life (i.e. are persons). I will argue that cognitive science undermines the intuition elicited by the ERC; I will show that whether or not embryos have a right to life, our mental tools will make it very difficult to believe that embryos have said right. This suggests that the intuition elicited by the ERC is not truth (...) indicative. The upshot of this is that we have an undercutting defeater for our intuition that embryos do not have a right to life. (shrink)

One strategy for arguing that it should be legally permissible to create human embryos, or to use of spare human embryos, for scientific research purposes involves the claim that such embryos cannot be persons because they are not human individuals while twinning may yet take place. Being a human individual is considered to be by most people a necessary condition for being a human person. I argue first that such an argument against the personhood of embryos must be rationally conclusive (...) if their destruction in public places such as laboratories is to be countenanced. I base this argument on a popular understanding of the role that the notion of privacy plays in abortion law. I then argue that such arguments against personhood are not rationally conclusive. The claim that the early embryos is not a human individual is not nearly as obvious as some assert. (shrink)

Most opposition to induced abortion turns on the belief that human fetuses are persons from conception. On this view, the moral status of the fetus alone requires those in a position to provide aid—gestational mothers—to make tremendous sacrifices to benefit the fetus. Recently, critics have argued that this pro-life position requires more than opposition to induced abortion. Pro-life theorists are relatively silent on the issues of spontaneous abortion, surplus in vitro fertilisation human embryos, and the suffering and death of born (...) persons due to lack of access to food, shelter and medical care. Colgrove et al call such arguments inconsistency arguments, arguing they ‘do not matter’ and mischaracterise them as ad hominem attacks. Here, I argue these are better understood as moral dilemmas. While some critics argue pro-life inaction is evidence that they do not really believe human fetuses are persons, I contend this inaction is likely the result of resolvable confusion rather than moral negligence. (shrink)

A common utilitarian argument in favor of abortion for fetal defects rests on some controversial assumptions about what counts as a life worth living. Yet critics of abortion for fetal defects are also in need of an argument free from controversial assumptions about the future child's quality of life. Christopher Kaczor (in: Kaczor (ed), The ethics of abortion: women's rights, human life, and the question of justice, Routledge, New York, 2011) has devised an analogy that apparently satisfies this condition. On (...) close scrutiny, however, Kaczor's analogy is too weak to debunk the common-morality intuition that at least some abortions for fetal defects are morally permissible. The upshot of this discussion is that, on the moral permissibility of abortions for fetal defects, a case-by-case approach is to be preferred. (shrink)

The scope of embryo research in the UK has been expanded by the Human Fertilisation and Embryology Regulations 2001. Two advisory bodies—the Chief Medical Officer’s Expert Group and the House of Lords’ Select Committee—presented various arguments in favour of embryo research. One of these is the view that, just as lottery tickets have relatively little value before the draw because of the low probability of their being the winning ticket, early embryos have relatively little value because of the presumed (...) low probability that they will mature into more developed embryos. This argument from probability is questioned in this paper, as well as the contention that allowing embryo destruction is incompatible with the view that embryos have full moral status. Although I challenge Savulescu’s view that early embryos should be entered into a lottery in which they are subjected to the probability of being destroyed , a revised version of Thomson’s analogy of the famous violinist defies the view that the position that the embryo has full moral status is incompatible with qualified support for embryo destruction. (shrink)

Eugene Mills has recently argued that human organisms cannot begin to exist at fertilization because the evidence suggests that egg cells persist through fertilization and simply turn into zygotes. He offers two main arguments for this conclusion: that ‘fertilized egg’ commits no conceptual fallacy, and that on the face of it, it looks as though egg cells survive fertilization when the process is watched through a microscope. We refute these arguments and offer several reasons of our own to think that (...) egg cells do not survive fertilization, appealing to various forms of essentialism regarding persons, fission cases, and a detailed discussion of the biological facts relevant to fertilization and genetics. We conclude that it is plausible, therefore, that human organisms begin to exist at fertilization – or, at the very least, that there are grounds for thinking that they existed as zygotes which do not apply to the prior egg cells. While this does not entail that human persons begin to exist at this point, it nevertheless has considerable significance for this latter question. (shrink)

I have argued that substance ontology cannot be used to determine the moral status of embryos. Patrick Lee, Christopher Tollefsen, and Robert George wrote a Reply to those arguments in this Journal. In that Reply, Lee, Tollefsen, and George defended and clarified their position that their substance ontology arguments prove that the zygote and the adult into which it develops are the same entity that share the same essence. Here, I show the following: Even using the substance ontology framework to (...) which Lee, Tollefsen, and George subscribe, we cannot know when in development substance changes cease. Substance ontology cannot therefore be used to assign moral status to embryos. The Lee, Tollefsen, and George substance ontology framework should not be applied to the study of development or to biological discourse in general, because this framework depends on premises that do not apply. (shrink)