This article addresses a difficult case at the intersection of philosophical theology and truthmaker theory. I show that three views, together, lead to difficultiesin providing truthmakers for truths of contingent predication, such as that the bread is white. These three views are: the Catholic dogma of transubstantiation, astandard truthmaker theory, and a trope (or accident) view of properties. I present and explain each of these three views, at each step noting their connections to the thought of St. Thomas Aquinas. (...) After presenting the three views, I show why they entail a difficulty for providing truthmakers for truths of contingent predication,drawing on two cases that are not impossible, for all we know. I then present four ways that one can respond to this difficulty, afterward noting some shortcomingsof those responses. (shrink)

Arthur Danto's theory of art contains a theological way of thinking about indiscernible realities that have been the subject of theological dispute for almost two millennia. This long tradition raises new questions for how to understand that theory. Transfiguration – metamorphosis – necessarily involves a change at some point in appearance or in what Danto treats as aesthetic properties inessential to the being of art. Transubstantiation means an ontological change that excludes a priori any perceptible difference. Danto often insists (...) on this very particular aspect when he explains the relationship between artworks and commonplace objects: a non‐art object can look exactly like an artwork. In the Catholic tradition, transubstantiation can occur only if those performing the sacrament act faithfully and in conformity to a tradition. Danto's theory is understand better by reference to transubstantiation than to transfiguration. (shrink)

This article aims to provide an intelligible explication of the doctrine of Transubstantiation. A model of this doctrine is formulated within the formal, neo-Aristotelian metaphysical and ontological framework of Jonathan Lowe, termed Serious Essentialism and the Four-Category Ontology. Formulating the doctrine of Transubstantiation within this metaphysical and ontological framework will enable it to be explicated in a clear and consistent manner, and the oft-raised intelligibility question against it can be answered.

According to the Eucharistic doctrine of Transubstantiation, when the priest consecrates the bread and wine, the whole substance of the bread and wine are converted into the body and blood of Christ. The of the bread and wine, however, remain present on the altar. This doctrine leads to a clutch of metaphysical problems, some of which are particularly troubling for essentialists. In this paper, I discuss some of these problems, which have recently been pressed by Brian Ellis and Justin (...) Broackes. I argue that defenders of Transubstantiation have satisfactory replies. (shrink)

This paper is concerned with metaphysical issues surrounding the doctrines of transubstantiation and the real presence. In particular, I am concerned with the nature of the eucharistic change, and with the manner in which Christ is believed to be present in the Blessed Sacrament. My primary goal is to give an account of these doctrines (i) which does not involve the thesis that upon consecration one substance has become identical with another, previously existing substance, (ii) which is consistent with (...) a particulate account of matter and material substances, and (iii) which explains why Christ—in his institution of the Lord’s Supper—is not enjoining us to become cannibals. More generally, my goal is to locate the irreducibly mysterious aspects of these doctrines, and to respond to some intuitively plausible reasons for thinking them to be incoherent, metaphysically impossible, or morally repugnant. (shrink)

Dans les textes anciens du Canon Romain aussi bien que dans le Missale Romanum de 1570 et 1970 les paroles de consécration parlent de sang qui sera versé . Ce temps futur a été longtemps accepté comme consistant avec la traduction dans la Vulgate de Jérôme du participe ekunnomenon qui apparaît dans des textes des trois évangiles synoptiques. Cependant, en 1979 la Nuova Vulgata Bibliorum, publiée pour servir de nouveau texte officiel de la Vulgate dans l'Eglise catholique, substitua un temps (...) présent . L'étude présente explique que même si ekunnomenon est en fait au temps présent, l'aspect verbal établi par sa position dans la citation sur la coupe dénote un événement futur: l'effusion du sang à la crucifixion. L'analyse critique textuelle montre que le sens d'un temps futur fut reconnu par l'ancien traducteur latin et par St. Jérôme. L'étude montre que même si un sens de temps présent peut sembler supporter la Transubstantiation en suggérant que le sang est répandu pour ceux qui boivent du calice, en fait il diminue la doctrine, comme les protestans du 16ème siecle l'ont reconnu. L'usage du sens du temps présent pour décrire une action affectant le sang de l'alliance ne manque pas seulement de mettre en évidence que ce qui sera répandu au Calvaire en expiation a la même identité que ce qui est déjà dans la coupe, mais diminue l'historicité de l'institution eucharistique de Jésus à la veille de sa mort. (shrink)

Abstract:Transubstantiation is a philosophical term used to describe what takes place in the rite of the Eucharist. The rite was proposed as a test case by Arnauld in his objections to Descartes's Meditations. The most credible, well-founded response came from Robert Desgabets, who in his account of transubstantiation appealed in one fashion or other to five principles variously found among other Cartesians as well as Descartes himself—principles of intentionality, clear and distinct perception, the status of sensible qualities, exemplification, (...) and cognitive transcendence. (shrink)

The thesis that legal norms are rooted in theology is not new. It is worth considering, however, to what extent not only singular norms, but also models of normativity are the structural representation of theological concepts. In this article, I consider transubstantiation as one of such ideas. I analyse its place in two political theologies published at the same time (in 1922): Carl Schmitt’s Political Theology and James Joyce’s Ulysses. I argue that both thinkers used the idea of (...) class='Hi'>transubstantiation as a normative mechanism to deal with anomie that encompassed European societies after the First World War. (shrink)

Recent debate over transubstantiation has concentrated either on transubstantiation as a kind of embarrassment in consequence of modern physics, or on the extent to which it is both a doctrine elaborated in the light of metaphysics and recoverable in consequence of metaphysics having been overcome. In this sense the tension between Aquinas' apparently metaphysical formulation of the doctrine and the less overtly metaphysical formula adopted by the Council of Trent has indicated a way of ‘rescuing’ or ‘recovering’ the (...) doctrine.This article argues that such a recovery is a false trail. Pope Paul VI was right to be wary of relativising the Eucharistic event to the believing community in any doctrine of transignification. Alternatively, attempts like Chauvet's and Macquarrie's to restate Eucharistic event in terms of Heidegger's Geviert presuppose Heidegger has succeeded in destroying the metaphysics of presence, so that they can use the fruits of his researches. What is actually at issue in thinking through transubstantiation is how the doctrine relates to conceptions of the physical: Aristotelian, what comes to be Newtonian, or postmodern conceptions which appear to eschew physics altogether.Heidegger's contribution to the debate would better point to how knowing anything means being included in and disclosed by what I know. A re‐investigation of transubstantiation might therefore take into account the extraordinary reappearance of the term ‘transubstantiation’ in current non‐theological investigations of performativity .Here transubstantiation would include not the maximal meaning of bread and wine as signs constituted in das Geviert, ‘after’ substance has been critiqued, but their minimality, in enacting a change in substance . This would confirm the divinising meaning of the Eucharistic event, which stresses how we are caught up into the divine. Thus, whereas in transignification the Eucharistic event occurs in consequence of the will of the community of believers, in transubstantiation it is the enactment of the community as community that is at issue, an enactment in consequence of no act of will of its own. In terms of the postmodern and non‐theological appropriation of the word transubstantiation, this means that I who participate in the Eucharistic am re‐ordered, or re‐materialised, or ‘trans‐substantiated’ in the Eucharistic event. (shrink)

This article evaluates the political implications of Thomas Hobbes’s extensive treatment of religion by taking up the motif of the Eucharist (and accompanying doctrine of transubstantiation) in Leviathan. Hobbes holds out transubstantiation as an exemplar of absurdity and an historical outgrowth of Christianity’s inauspicious meeting with pagan practices. At the same time, Leviathan contains allusions to eucharistic imagery in its narration of the generation of the “Mortal God,” the commonwealth, as the incorporation of a civil body. These conflicting (...) sentiments are illustrative of a wider tension running through Hobbes’s thought. Although Hobbes’s repudiation of superstition is well-known, it stands in stark contrast to Leviathan’s treatment of Christianity as an exemplar of “true” religion. The varied allusions to eucharistic doctrine illustrate how proper use might be made of a persistent “natural religiosity.” Both in its consonance with reason and its political logic, Christianity remains a politically constructive expression of “power invisible.”. (shrink)

New Blackfriars, Volume 103, Issue 1104, Page 260-277, March 2022.

Diachronic emergence has recently been characterised as transformation. This aims to capture the thought that the entities that emerge are radically new or different. Transformation is hence closely linked with a central (but rarely raised) challenge for all emergentists: how to account for the identity and individuation of entities involved in emergence. With this challenge in view, I develop and probe four interpretations of transformation: addition, replacement, fusion, and transubstantiation. Of those, transubstantiation provides the most plausible response to (...) the challenge about identity. Accordingly, diachronic emergence is a transformative process whereby an individual passes from one primary kind to another. (shrink)

The article treats the doctrine of transubstantiation or the Eucharistic change as formulated by Thomas Aquinas in his Summa theologiae, Question 75, against its double conceptual (Christian religious vs. Aristotelian philosophical), as well as double linguistic (Latin vs. translated Greek), background. The doctrine is presented and analyzed as a philosophical-theological theory that can be explicated and assessed using the concept of philosophical untranslatable(s), recently discovered and brought to the fore by the proponents of the “translational turn” in continental philosophy. (...) It is argued on the basis of careful study of Aquinas’ text that the notion of transubstantiation should be identified as a conceptual untranslatable. -/- Here the term “untranslatable” means a unique reinterpretation of Aristotelian language of being and change, which results in a conceptual innovation that has some inherent problems as well as creative and promising inventions. The usage of such a concept is justified by the fact that the reconceptualization that Aquinas did to a number of Peripatetic ideas creates a few untranslatable notions, which do not have much meaning outside the peculiarly Thomistic Latin vocabulary. Despite some criticisms they are not necessarily to be regarded as contradictions, but rather as thomistic untranslatables. (shrink)

This article argues that George Berkeley’s (1685–1753) interpretation of scientific and religious language was significantly received in C.S. Peirce’s (1839–1914) pragmatist semiotic.1 To this end, their similar views against transubstantiation in the Eucharist (Lord’s Supper, Holy Communion) will be considered. Berkeley being an Anglican bishop and Peirce’s life being linked to the Episcopal Church,2 a chief emphasis will be placed upon Peirce’s deriving his pragmatic method from Berkeley’s philosophy of language. At least three times, Peirce reviewed Berkeley’s works, including (...) Manuscript Introduction (to the Principles of Human Knowledge, 1710), in which he identified his version of Berkeleyan nom- inalism. (shrink)

Argues that traditional Catholic understanding of transubstantiation is obscured by modern metaphysics' neglect of the category of substance, and by modern semantic assumptions about how words signify.

This article explores a previously neglected manuscript essay in which Thomas White offers an account of the metaphysics underpinning transubstantiation. White’s views are of particular interest because his explanation employs a broadly mechanist framework, rather than the hylomorphism traditionally associated with Roman Catholic discussions of the Eucharist. The manuscript helps to shed light on a number of topics of importance to early modern philosophy including the reception of Descartes’ views, the relationship between theology and natural philosophy, and mechanist accounts (...) of identity and individuation. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Journal of the History of Ideas 62.1 (2001) 121-140 [Access article in PDF] The Rhetoric of Modal Equivocacy in Cartesian Transubstantiation Julian Bourg Everyday language, in which words are not defined, is a medium in which nobody can express himself unequivocally. Robert Musil 1René Descartes's attempt to explain Eucharistic transubstantiation has long been understood as a dramatically significant moment in his tightrope walk across the medieval-to-modern divide. (...) 2 Modeled on the Last Supper in the New Testament, the Eucharistic rite had been explained in the Catholic tradition after the twelfth century in the scholastic philosophical language of substance and accident. 3 As the Council of Trent reaffirmed in 1551, this transubstantiation was a conversion "of the whole substance of the bread into the substance of the Body and of the whole substance of the wine into the substance of His blood... the appearances [speciebus] only of the bread and wine remaining." 4 Christ was [End Page 121] held to be "truly, really, and substantially contained under the species of those sensible things," under what still appeared to be bread and wine. 5Descartes's dilemma was that on one hand he was dead set against the hylomorphic theory of substance and accident, and on the other hand he found himself obliged by some of his interlocutors to comment on transubstantiation. It was a balancing act that pleased no one for very long, since despite his sometimes eager discussions of the Eucharist, he was not, as he admitted, "a theologian by profession." 6 The putative heterodoxy of Cartesian transubstantiation was principally responsible for his works being placed on the Index of Prohibited Books in 1663 and for his thought being banned from schools under Louis XIV in 1671. 7 His treatment of the Eucharistic question also distressed others in the seventeenth and early eighteenth centuries, such as Thomas Hobbes and Isaac Newton, who were unhappy that Descartes had bothered with such a theological non-issue. 8 For the many post-seventeenth-century advocates of a proto-secular Descartes as the godfather of modern philosophy, Cartesian transubstantiation has proved similarly inconvenient.The indisputable connections between Descartes and his scholastic forerunners, exemplified by the Eucharistic question, service a basic question of contemporary Cartesian scholarship. As Émile Boutroux put it, how was new wine poured from old bottles? 9 Accepting as axiomatic that there was something both radical and original in the Cartesian project but without falling back on pieties about his turn toward the modern subject, we must ask how Descartes put forth novel claims in conceptual language regarded by his contemporaries as resonant, if not consonant, with the scholastic intellectual culture of Catholic Reform France. More precisely, setting aside the not-very-defensible position that such language was merely incidental to Cartesian thought (a position that dehistoricizes Descartes as a precocious Enlightener), the dilemma then becomes explaining how original positions were elaborated within scholastic language. One important task is accounting for what Descartes did with that vocabulary--how he pointed words and concepts in new and surprising directions. The Eucharist becomes crucial in this perspective. [End Page 122]Though the question of Cartesian transubstantiation has been discussed for some time, the topic is worth revisiting again in light of two themes, rhetoric and the Cartesian theory of modes. My argument is that Descartes used one particular scholastic term, "mode," in equivocal ways and that this equivocation was in multiple senses rhetorical. This rhetoric coalesced and came to the fore around the Eucharist because, given the intellectual-political climate of the Catholic Reformation, the stakes of transubstantiation were so high. That Descartes used certain scholastic terms in equivocal or ambiguous ways should come as no surprise. Of interest, though, is the fact that by definition "mode" meant many things. This ambiguous term facilitated ambiguous intellectual positions about the Eucharist that allowed Descartes more generally (no matter what he "really" intended) to skirt between an orthodoxy that represented the past and an originality, not without dangers in his time, that seem to gesture toward our day. Foregrounded with regard to... (shrink)

Catholic doctrine makes metaphysical claims about the Eucharist, but the distinctive language of “transubstantiation” is often treated as an historically contingent, and disposable, way of articulating these claims. Attempts to translate the metaphysics implied by “transubstantiation” into other terminology should begin by attending to the semantic assumptions of those who first articulated it. This chapter argues that the notion of substantial predication in realist semantics helps communicate a metaphysical claim which even well-intended efforts at translation into other semantic (...) frameworks often fail to capture. An implication of the argument is that, not only does realist semantics help us understand the Catholic doctrine of transubstantiation, but the Catholic doctrine of transubstantiation helps us recapture realist semantics and the Aristotelian notion of substance. (shrink)

In this book, Mark P. Fusco offers a historical, philosophical and theological review and appraisal of current research into quantum, post-modern, atheistic, mathematical, and philosophical theories that engage our interpretation of Hans Urs von Balthasar and Ferdinand Ulrich’s accounts of Ur-Kenosis. This cross-disciplinary approach inspires a new speculative metaphysical theory based on the representation of being as a holo-somatic ontology. Holocryptic metaphysics gives us a novel interpretation of transubstantiation as it is founded on the findings of quantum mechanical theory. (...) The quantum object and black hole’s properties present a new way to explain physical matter based on its holographic identity. This scientific theory for representing physical matter’s identity is recognized, for example, in the symmetry existing between a subatomic particle and its orbital shell, a single particle’s identity in relationship to its thermodynamic system, Hawking radiation, and black hole entropy. Further, the properties of quantum non-locality and teleportation signpost a new way to understand the Eternal Logos’ relationship to Jesus Christ and the Eucharist. (shrink)

HUME THOUGHT THAT WE CANNOT BE JUSTIFIED IN BELIEVING AN EVENT E TO HAVE OCCURRED GIVEN E’S CHARACTERIZATION OF A VIOLATION OF A LAW OF NATURE. HE CLAIMS THAT HE IS USING AN ARGUMENT SIMILAR TO JOHN TILLOTSON’S AGAINST TRANSUBSTANTIATION. A COMPARISON OF HUME’S ARGUMENT WITH TILLOTSON’S CAN HELP IN ANSWERING THE QUESTION OF WHETHER ONE CAN BE JUSTIFIED IN BELIEVING IN A MIRACLE. THE EVIDENTIAL VALUE OF BOTH TESTIMONY FOR, AND FIRSTHAND EXPERIENCE OF, AN ALLEGED MIRACLE IS CONSIDERED. (...) I EXAMINE THE ARGUMENT AGAINST TRANSUBSTANTIATION HUME PRESENTS AS TILLOTSON’S AND THEN CONSIDER HOW HUME’S ARGUMENT MAY BE "OF A LIKE NATURE" TO THE ARGUMENT HE ATTRIBUTES TO TILLOTSON. TILLOTSON’S ACTUAL ARGUMENT IS VERY DIFFERENT FROM THE ONE HUME PRESENTS IN HIS NAME. (shrink)

Aquinas describes transubstantiation as a “conversion” of one substance into another. Yet he denies any common substrate underlying the succession of substances. Germain Grisez finds this unintelligible. The article's thesis is that Aquinas saw and resolved the basic issue contained in Grisez's objection. The key text stresses a “nature of being” common to the two substances. This nature, it is argued, is univocal. As such it constitutes a continuous object of signification that is both necessary and sufficient for the (...) sacramental action of the words of the consecration. That action can only be understood as a supernatural kind of conversion. (shrink)

The rational explanation of the Eucharist is at the centre of a revived debate in philosophical theology. After describing gunk-relational ontology, I show how it allows us to understand transubstantiation differently than other traditional and contemporary accounts, from which it draws a few points but combining them in a new way. In gunk-relational ontology every substance is its own relations, which constitute a gunky fundamental reality. The liturgical celebration of the Last Supper therefore creates a new relational situation for (...) the bread: the substance of the bread (its relations) profoundly changes its nature. (shrink)

In the 21st century, Carl Gustav Jung (1875-1961) remains one of the key figures in the field of analytical psychology - and Psychological Types, or The Psychology of Individuation, published in 1921, is one of his most influential works. It was written during the decade after the publication of Psychology of the Unconscious (1912), which effectively ended his friendship and collaboration with Sigmund Freud. Whereas the earlier work had clearly marked Jung's psychoanalytical divergence from Freud it is the Psychology of (...) Types that fully clarifies and presents the nature, quality and characteristics of his analytical psychology. The work, which was in part a consequence of his need to reconcile the competing theories of Freud, whom he regarded as extraverted, and Alfred Adler, whom he saw as introverted, develops his concept of descriptive categories for understanding the human mind in terms of the two essential attitude types: introversion and extraversion. These basic attitudes operate in tandem with four principal interacting functions of consciousness which Jung identifies as sensation and intuition, which are functions of perception, and thinking and feeling, which are functions of judgment. The eight resulting psychological types are then explored, described, identified, characterised and explained in considerable detail, with a soaring range of examples drawn from the whole of human history, culture and experience. In his efforts to explore and illuminate the nature of the unconscious mind and indeed the collective unconscious, he investigates the problems posed by the differing psychological types and how these have manifested from classical and medieval times to the 20th century. His observations range from Aristotle, Socrates and Plato to Tertullian and Origen, and from Abélard and Master Eckhart to Martin Luther and the problem of transubstantiation. Jung takes the listener on an odyssey of human thinking. He considers the problem of types in the works of Schiller and Goethe, and Spitteler and his treatment of the Prometheus myth. He contrasts idealism and realism, the Apollonian and the Dionysian in Nietzsche, and explores a host of philosophical and religious sources from the Bible to Taoism to Brahminism. He considers the nature of the reconciling symbol in Spitteler before analysing the nature of types in modern philosophy, aesthetics and biography, giving detailed consideration to William James' characteristic pairs of opposites and Furneaux Jordan's 'character sketch of the emotional types'. Jung goes on to fully identify and describe the characteristic differences between the extraverted and introverted types and provides an extensive chapter on definitions to fully clarify the meaning of the language he employs and make his meaning more accessible. Authoritatively read by Martyn Swain for Ukemi Audiobooks, Psychological Types is an inexhaustible treasure chest of ideas and creative inspiration worth listening to time and time again. (shrink)

Alain Badiou credits Jacques Lacan with the formulation of an idea of love that demands to be granted a central place in the structure of any contemporary philosophy worthy of the name. However, at the same time, Badiou is understandably wary of the psychoanalytic tendency to dismiss the amorous as epiphenomenal in relation to the libidinal, to treat love as disguised lust. In both avoiding the indefensible move of strictly partitioning the amorous and the libidinal by situating them as two (...) poles of a mutually-exclusive opposition as well as refusing to reduce one to the other, it must be asked: How does desiring something occasionally become loving nothing? The true challenge for a joint philosophical-psychoanalytic delineation of the amorous is to develop the basis for an explanation of how love miraculously emerges from lust, that is, of how the interplay between various libidinal factors creates the amorous seemingly ex nihilo via ontogenetic processes in the midst of which transpires what appears as a dynamic of transubstantiation elevating lust to love.". (shrink)

This paper was presented at the Second World Congress on Logic and Religion on the sub-topic of logics vis-à-vis illogicalities in religion. It deals with fourteenth-century-logician Thomas Manlevelt’s Ockhamist approach to logic (the ars vetus, strictly speaking) and its ontological outcome: rejection of the existence of substance. Although God, the Trinity, the Blessed Virgin, the Antichrist and the consecrated host keep popping up within the domain of logic, it is argued that Manlevelt kept clear water between logic and theology. Things (...) divine, and especially the transubstantiation of the consecrated host, do however play a crucial role in the development of his idea of the non-existence of substance. It is suggested that this might imply the miraculous nature of the whole universe. (shrink)

Marx reminded us that the critique of political economy is also the critique of religion, that economy is religion. Thus, a critique of religion that would not attend to economy, or let it continue to expand its dominion – what passes for “secularism” today – would fail to reach its aims. “One might just as well abolish the Pope while leaving Catholicism in existence.”Money is religion, then, and economic theology is the history of religion as political economy. More precisely, and (...) because Christianity is evidently not just any religion but rather conceals itself under that general term, economic theology is primarily the history of what Jacques Derrida has called mondialatinisation. It is the history of a concealed trinity: the translation, transubstantiation, and transvaluation, whereby Christianity became, in fact, “religion,” blood became money, and money – faith and works, paceWeber – became what it is all about. (shrink)

Despite the importance of Leibniz's mature philosophy, his early work has been relatively neglected. This collection begins with an overview of his formative years and includes 12 original papers by internationally-known scholars. The contributions reflect the wide range of the young Leibniz's philosophical interests and his interests in related subjects, including law, physics and theology. Some chapters explore his relationship to other philosophers, including his teachers in Leipzig and Jena and his Paris friend Tschirnhaus, as well as Hobbes and Spinoza. (...) Others focus on particular periods or texts and deal with themes ranging from ethics and free-will to his philosophically-significant account of transubstantiation and his early monadology. Some of the topics are familiar to Leibniz students - harmony, sufficient reason and possible worlds, for instance - but others are less familiar - for instance, his attitude to historical truth, millenarianism and the relation of mathematics to the natural world. The book provides an introduction to Leibniz's early philosophy and throws light on the development of some of the doctrines with which he is particularly associated. (shrink)

This book contains a collection of papers from the 1985, 1987 and 1989 Australian Lonergan Workshops. Contents: A Summary of Lonergan's Economic Diagram, S.P. Burley; How Lonergan Illuminates Aristotle, T.V. Daly, S.J.; Lonergan and the Philosophy of Science, Dr. W.J. Danaher; "Transubstantiation Over Transsignification": Giovanni Sala and Edward Schillebeeckx on the Eucharistic Presence, P. Beer, S.J.; Schillebeeckx's Philosophic Prologomenon: A Dialectic Analysis, Dr. N. Ormerod; Mutual Self-Mediation with Christ, F. Fletcher, M.S.C.; The Integration of Trinitarian Theology and Spirituality, Bishop (...) J. Bathersby; A Von Neumann Representation of Lonergan's Production Model, S.P. Burley; Chemistry and Insight, Dr. W.J. Danaher; Rediscovering Philosophies through Cognitional Models, T. Daly, S.J.; The Holy Spirit and Lonergan's Psychological Analogy, P. Beer, S.J.; Lonergan and Finnis on the Human Good, Dr. N. Ormerod; A Response to Lonergan and Finnis, Rev. G. Moses; Insight in Science, Dr. W.J. Danaher; Learning-Levels, T.V. Daly, S.J.; Lonergan as a Neo-Schumpeterian, S.P. Burley; Bernard Lonergan, Mechanism and Evolution, L. Drake, S.J.; Can I Be Certain That I Am Justified?, P. Beer, S.J.; The A Priori in Human Knowledge: A Critique of Kant from the Point of View of Lonergan's Insight, M. Brennan, R.C.S.J.; The Foundational Theologian as Prophet, F. Fletcher, M.S.C. (shrink)

The period in the history of blood transfusion that I discuss is roughly 1628, the date of publication of Harvey’s work on blood circulation, De Motu Cordis, and 1668, the year of the first allegedly successful transfusion of blood into a human subject by a French physician Jean Denis, and the official order to prohibit the procedure. The subject of special interest in this history is Robert Desgabets, an early defender and teacher of the Cartesian philosophy at St. Maur, in (...) the region of Lorraine, France. Desgabets’ Discourse de la communication ou transfusion du sang Communication or Transfusion of Blood contains a defence and description of the procedure. This three page manuscript is a lecture delivered at one of the meetings held at M. de Montmor in July 1658. Letters and documents which describe the events of these conferences during Desgabets’ eight month stay in Paris in 1658, indicate that he had numerous discussions with the Cartesian physicist Jacques Rohault and also with another leading Cartesian scientist, Gerauld Cordemoy. In addition, Desgabets is said to have frequently attended the meetings where he showed his interest in many scientific questions. I provide evidence that Desgabets was not an arm-chair scientist: he performed experiments, and he designed and created an apparatus to carry out the procedure of blood transfusion. I show how Desgabets’s Cartesian conception of mechanism and body had theological as well as epistemological underpinnings and consequences. For Desgabets, experiments on blood transfusion were as much demonstrations of the truth of the Cartesian metaphysics as they were demonstrations of the possibility of transubstantiation. The role of experiment was to provide demonstrations of the first principles or truths of physics and theology by connecting them to the way God actually made the world. The upshot of Desgabets's treatment of expérience is that it is integral to the knowledge of essences, and hence to the discovery of the truth of things. In placing expérience at the very foundation of true knowledge, Desgabets reconstructs Cartesianism on an empiricist foundation. (shrink)