In December 1924 Wolfgang Pauli proposed the idea of an inner degree of freedom of the electron, which he insisted should be thought of as genuinely quantum mechanical in nature. Shortly thereafter Ralph Kronig and, independently, Samuel Goudsmit and George Uhlenbeck took up a less radical stance by suggesting that this degree of freedom somehow corresponded to an inner rotational motion, though it was unclear from the very beginning how literal one was actually supposed to take this picture, (...) since it was immediately recognised that it would very likely lead to serious problems with Special Relativity if the model were to reproduce the electron's values for mass, charge, angular momentum, and magnetic moment. However, probably due to the then overwhelming impression that classical concepts were generally insufficient for the proper description of microscopic phenomena, a more detailed reasoning was never given. In this contribution I shall investigate in some detail what the restrictions on the physical quantities just mentioned are, if they are to be reproduced by rather simple classical models of the electron within the framework of Special Relativity. It turns out that surface stresses play a decisive role and that the question of whether a classical model for the electron does indeed contradict Special Relativity can only be answered on the basis of an exact solution, which has hitherto not been given. (shrink)

Physics, History, and the German Atomic Bomb. This paper examines the German concept of a nuclear weapon during National Socialism and the Second World War. Zusammenfassung: Physik, Geschichte und die deutsche Atombombe. Dieser Aufsatz untersucht die deutsche Vorstellung einer nuklearen Waffe während des Nationalsozialismus und des Zweiten Weltkrieges.

Berichte zur Wissenschaftsgeschichte, Volume 45, Issue 1-2, Page 219-244, June 2022.

What are the features of a good scientific theory? Samuel Schindler's book revisits this classical question in the philosophy of science and develops new answers to it. Theoretical virtues matter not only for choosing theories 'to work with', but also for what we are justified in believing: only if the theories we possess are good ones can we be confident that our theories' claims about nature are actually correct. Recent debates have focussed rather narrowly on a theory's capacity to (...) predict new phenomena successfully, but Schindler argues that the justification for this focus is thin. He discusses several other theory properties such as testability, accuracy, and consistency, and highlights the importance of simplicity and coherence. Using detailed historical case studies and careful philosophical analysis, Schindler challenges the received view of theoretical virtues and advances arguments for the view that science uncovers reality through theory. (shrink)

Lately there has been a renewal of interest among political philosophers and theorists in the idea of cosmopolitanism. However, there is little consensus among contemporary theorists about the precise content of a cosmopolitan position. This article calls attention to two different strands in recent thinking about cosmopolitanism. One strand presents it primarily as a doctrine about justice. The other presents it primarily as a doctrine about culture and the self. Although both forms of cosmopolitanism have some appeal, each is sometimes (...) interpreted in ways that render it untenable. This article attempts to distinguish between the more and the less plausible versions of each form of cosmopolitanism. In each case, the distinction turns on how the normative status of particular interpersonal relationships and group affiliations is understood. (shrink)

Reading Foucault’s work on power and subjectivity alongside “developmentalist” approaches to evolutionary biology, this article endorses poststructuralist critiques of political ideals grounded in the value of subjective agency. Many political theorists embrace such critiques, of course, but those who do are often skeptical of liberal democracy, and even of normative theory itself. By contrast, those who are left to theorize liberal democracy tend to reject or ignore poststructuralist insights, and have continued to employ dubious ontological assumptions regarding human agents. Against (...) both groups, I argue that Foucault’s poststructuralism must be taken seriously, but that it is ultimately consistent with normative theory and liberal democracy. Linking poststructuralist attempts to transcend the dichotomy between agency and structure with recent efforts by evolutionary theorists to dissolve a similarly stubborn opposition between nature and nurture, I develop an anti-essentialist account of human nature and agency that vindicates poststructuralist criticism while enabling a novel defense of liberal democracy. (shrink)

Why should we care what happens to future generations? Samuel Scheffler argues that we are more invested in the fate of our descendants than we may realize. Implicit in our own attachments are powerful reasons for wanting the chain of human generations to persist into the indefinite future under conditions conducive to human flourishing.

I argue that Spinoza endorses "conceptual dependence monism," the thesis that all forms of metaphysical dependence (such as causation, inherence, and existential dependence) are conceptual in kind. In the course of explaining the view, I further argue that it is actually presupposed in the proof for his more famed substance monism. Conceptual dependence monism also illuminates several of Spinoza’s most striking metaphysical views, including the intensionality of causal contexts, parallelism, metaphysical perfection, and explanatory rationalism. I also argue that this priority (...) of the conceptual does not commit Spinoza to forms of idealism or mentalism. The question of how to understand different kinds of metaphysical dependence is quite controversial in Spinoza studies; I address major alternative readings in the notes. But there I also try to draw connections to the growing debate in contemporary discussions about metaphysical dependence, as this topic is a happy point of shared interest between Spinoza and contemporary metaphysicians alike. (shrink)

We consider two reasons why firms should be owned and run democratically by their workers. The first concerns accountability : Because the employment relationship involves the exercise of power, its governance should on democratic grounds be accountable to those most directly affected. The second concerns efficiency : The democratic firm uses a lower level of inputs per unit of output than the analogous capitalist firm.

It can be shown by means of a paradox that, given the Principle of Sufficient Reason, there is no conjunction of all contingent truths. The question is, or ought to be, how to interpret that result: _Quid sibi velit?_ A celebrated argument against PSR due to Peter van Inwagen and Jonathan Bennett in effect interprets the result to mean that PSR entails that there are no contingent truths. But reflection on parallels in philosophy of mathematics shows it can equally be (...) interpreted either as a proof that there are "too many" contingent truths to combine in a single conjunction or as a proof that the concept _contingent truth_ is indefinitely extensible and there is no such thing as "all contingent truths." Either interpretation would reconcile PSR with contingent truth, but the natural rationales of those interpretations are at odds. This essay argues that the second interpretation is a more satisfactory explanation of why, if PSR is true, there should be no conjunction of all contingent truths. This sheds new light on the nature of the explanatory demand embedded in PSR and uncovers a number of surprising implications for the commitments of rationalism. (shrink)

In light of Jewish tradition and the metaphysics of time, we argue that God can and will change the past. The argument makes for a new answer to the problem of evil and a new theory of atonement.

At the core of Kant's ethics lies the claim that if there is a supreme principle of morality then it cannot be a principle based on utilitarianism or Aristotelian perfectionism or the Ten Commandments. The only viable candidate for such a principle is the categorical imperative. This book is the most detailed investigation of this claim. It constructs a new, criterial reading of Kant's derivation of one version of the categorical imperative: the Formula of Universal Law. This reading shows this (...) derivation to be far more compelling than contemporary philosophers tend to believe. It also reveals a novel approach to deriving another version of the categorical imperative, the Formula of Humanity, a principle widely considered to be the most attractive Kantian candidate for the supreme principle of morality. This book will be important not just for Kant scholars but for a broad swathe of students of philosophy. (shrink)

Bertrand Russell and the Nature of Propositions offers the first book-length defence of the Multiple Relation Theory of Judgement (MRTJ). Although the theory was much maligned by Wittgenstein and ultimately rejected by Russell himself, Lebens shows that it provides a rich and insightful way to understand the nature of propositional content. In Part I, Lebens charts the trajectory of Russell’s thought before he adopted the MRTJ. Part II reviews the historical story of the theory: What led Russell to deny the (...) existence of propositions altogether? Why did the theory keep evolving throughout its short life? What role did G. F. Stout play in the evolution of the theory? What was Wittgenstein’s concern with the theory, and, if we can’t know what his concern was exactly, then what are the best contending hypotheses? And why did Russell give the theory up? In Part III, Lebens makes the case that Russell’s concerns with the theory weren’t worth its rejection. Moreover, he argues that the MRTJ does most of what we could want from an account of propositions at little philosophical cost. This book bridges the history of early analytic philosophy with work in contemporary philosophy of language. It advances a bold reading of the theory of descriptions and offers a new understanding of the role of Stout and the representation concern in the evolution of the MRTJ. It also makes a decisive contribution to philosophy of language by demonstrating the viability of a no-proposition theory of propositions. (shrink)

To be a liberal is, among other things, to grant basic liberties some degree of priority over other aspects of justice. But why do basic liberties warrant this special treatment? For Rawls, the answer has to do with the allegedly special connection between these freedoms and the ‘two moral powers’ of reasonableness and rationality. Basic freedoms are said to be preconditions for the development and exercise of these powers and are held to warrant priority over other justice-relevant values for that (...) reason. In the first half of the article I mount an internal critique of this Rawlsian line, arguing that it is flawed in two main ways. First, it overestimates the contribution of basic freedom to moral personality. Second, it underestimates the contribution of non-liberty resources to moral personality. In the second half of the article I repair these flaws. The result is a new, intriguingly radical version of justice as fairness, one with surprising—yet plausible—implications for economic and gender justice. (shrink)

According to Phenomenal Conservatism (PC), if it seems to a subject S that P, S thereby has some degree of (defeasible) justification for believing P. But what is it for P to seem true? Answering this question is vital for assessing what role (if any) such states can play. Many have appeared to adopt a kind of non-reductionism that construes seemings as intentional states which cannot be reduced to more familiar mental states like beliefs or sensations. In this paper I (...) aim to show that reductive accounts need to be taken more seriously by illustrating the plausibility of identifying seemings and conscious inclinations to form a belief. I briefly close the paper by considering the implications such an analysis might have for views such as PC. (shrink)

I argue for a perfectionist reading of Mill’s account of the good life, by using the failures of development recorded in his Autobiography as a way to understand his official account of happiness in Utilitarianism. This work offers both a new perspective on Mill’s thought, and a distinctive account of the role of aesthetic and emotional capacities in the most choiceworthy human life. I consider the philosophical purposes of autobiography, Mill’s disagreements with Bentham, and the nature of competent judges and (...) the pleasure they take in higher culture. I conclude that Millian perfectionism is an attractive and underappreciated option for contemporary value theory. (shrink)

Though the notion of common-sense plays an important role in Kant’s aesthetic theory, it is not immediately clear what Kant means by this term. This essay works to clarify the role that common-sense plays in the logic of Kant’s argument. My interpretive hypothesis is that a careful examination of the way common-sense functions in Kant’s account of judgments of taste can help explain what this notion means. I argue that common-sense names the capacity to discern the relation between the cognitive (...) faculties by means of a feeling, and I conclude that this understanding of common-sense lays the groundwork for an account of the unity of judgments of taste. I conclude that attending to Kant’s notion of common-sense is especially important because it highlights the anthropological significance of Kant’s account of beauty. (shrink)

It is not uncommon for contemporary moral philosophers to appeal, in support or in criticism of one moral theory or another, to supposed features of or facts about persons. Rawls, for example, maintains that ‘utilitarianism does not take seriously the distinction between persons,’ and that since ‘the correct regulative principle for anything depends on the nature of that thing,’ we should not expect utilitarianism to be the correct regulative scheme for human beings. Nozick, in a similar spirit, suggests that the (...) deontological restrictions he calls ‘side constraints’ are desirable components of a moral conception because, without them, a moral scheme is unable to ‘sufficiently respect and take account of the fact that … [each individual] is a separate person,’ unable to take account of the fact that, with respect to each individual, ‘his is the only life he has.’ And Williams, to cite still another example, suggests that utilitarianism is a defective moral theory because ‘it cannot coherently describe the relations between a man's projects and his actions.'. (shrink)

I argue that high level causal relationships are often more fundamental than low level causal relationships. My argument is based on some general principles governing when one causal relationship will metaphysically ground another—a phenomenon I term derivative causation. These principles are in turn based partly on our intuitive judgments concerning derivative causation in a series of representative examples, and partly on some powerful theoretical considerations in their favour. I show how these principles entail that low level causation can derive from (...) high level causation, and in particular that neural causation can derive from mental causation. I then draw out several important consequences of this result. Most immediate among these are the implications the result has for aspirations to reduce high level causation to its low level counterpart. But the result also bears on the possibility of downward causation, the relationship between counterfactuals and causation, and the idea—familiar from both the literature on the exclusion problem and the literature on proportionality constraints on causation—that causal relationships at different levels compete for their existence. (shrink)

What is a human body? Some reasons are given for thinking that, in the primary case, it is a body that is both of and suitable to a rational animal.

One shortcoming of the chain rule is that it does not iterate: it gives the derivative of f(g(x)), but not (directly) the second or higher-order derivatives. We present iterated differentials and a version of the multivariable chain rule which iterates to any desired level of derivative. We first present this material informally, and later discuss how to make it rigorous (a discussion which touches on formal foundations of calculus). We also suggest a finite calculus chain rule (contrary to Graham, Knuth (...) and Patashnik's claim that "there's no corresponding chain rule of finite calculus"). (shrink)

I present an argument that for any computer-simulated civilization we design, the mathematical knowledge recorded by that civilization has one of two limitations. It is untrustworthy, or it is weaker than our own mathematical knowledge. This is paradoxical because it seems that nothing prevents us from building in all sorts of advantages for the inhabitants of said simulation.

The American Journal of Bioethics, Volume 11, Issue 6, Page 48-49, June 2011.

Elementary patterns of resemblance notate ordinals up to the ordinal of Pi^1_1-CA_0. We provide ordinal multiplication and exponentiation algorithms using these notations.

In this paper I argue that what has been called Leibniz’s “aggregate argument” for unities in things in fact comprises three quite distinct lines of argument, with different concepts being advanced under the name ‘unity’ and meriting quite different conceptual treatment. Two of those arguments, what I call the Borrowed Reality Argument and the Multitude Argument, also appear in later writings to be further elaborated into arguments not just for unities but for simples. I consider the arguments in detail. I (...) suggest that one of the two, the Borrowed Reality Argument, is philosophically more promising and has the stronger evidence for being central in Leibniz’s thought as he argues for the existence of simple substances. (shrink)

A suprise may occur if we use a similar strategy to the Liar's paradox to mathematically formalize "This sentence does not contain the symbol X".

This paper is a response to a recent article by Christopher Wellman in which Wellman argues that gratitude is better understood as a virtue rather than a source of moral obligations. First, I offer several examples intended to dispute his claim that gratitude does not impose duties. Second, I provide my own reasons for thinking that deontic notions alone cannot capture the moral significance of gratitude. Wellman’s mistake is attributable to an overly narrow conception of duty that his argument presupposes. (...) Finally, I consider the implications of my analysis for fiduciary ethics generally given the indeterminacy of the principle of gratitude. (shrink)

New and experienced psychotherapists alike can find themselves overwhelmed by an ethical quandary where there doesn't seem to be an easy solution. This book presents positive ethics as a means to overcome such ethical challenges. The positive approach focuses on not just avoiding negative consequences, but reaching the best possible outcomes for both the psychotherapist and the client. The authors outline a clear decision-making process that is based on three practical strategies: the ethics acculturation model to help therapists incorporate personal (...) ethics into their professional roles, the quality enhancement model for dealing with high-risk patients who are potentially harmful, and ethical choice-making strategies to make the most ethical decision in a situation where two ethical principles conflict. Throughout the decision-making process, psychotherapists are encouraged to follow four basic guidelines: Focus on overarching ethical principles Consider intuitive, emotional, and other nonrational factors Accept that some problems have elusive solutions Solicit input from colleagues and consultation groups Numerous vignettes illustrate how to apply positive ethics to many different ethical challenges that psychotherapists will likely encounter in practice. (shrink)

In this global village, it is relevant to look at two educational visionaries from two continents, John Dewey and Rabindranath Tagore. Dewey observed that the modern individual was depersonalized by the industrial and commercial culture. He, thus, envisioned a new individual who would find fulfillment in maximum individuality within maximum community, which was embodied in his democratic concept and educational philosophy. Tagore's educational vision was based on India's traditional philosophy of harmony and fullness. It focused on self-realization within the context (...) of international education. This article compares the educational visions of Dewey and Tagore and demonstrates that Tagore's international educational perspective adds to Dewey's concepts of social individual and democracy and that their perspectives have implications for contemporary education. (shrink)

According to Stewart Candlish, Russell and Moore had misunderstood F. H. Bradley’s monism. According to Jonathan Schaffer, they had misunderstood monism more generally. A key thread of the creation narrative of analytic philosophy, according to which Russell and Moore successfully undermined monism to give rise to a new movement is, therefore, in doubt. In this paper, I defend the standard narrative against those who seek to revise it.

This article presents an analysis of James Benning's film, BNSF (2013). It argues that the film comprises a landscape rendered in such a way that the temporal aspects of the processes, both cultural and natural, of which it is composed are brought forth. The article also asserts that, by relating a world that unfolds with a measure of contingency, the film not only manifests the inherent inadequacy of representation, but also it draws attention to the efficacy of the world in (...) the making of its moving image. Finally, the article demonstrates that the qualities of the world delimited by the film impel the viewer to attempt to envision facts of nature that greatly outsize the horizon of her human point of view. (shrink)

Excerpt from Spinoza and Time The Arthur Davis Memorial Lecture was founded in 1917, under the auspices of the Jewish Historical Society of England, by his collaborators in the translation of "The Service of the Synagogue," with the object of fostering Hebraic thought and learning in honour of an unworldly scholar. The Lecture is to be given annually in the anniversary week of his death, and the lectureship is to be open to men or women of any race or creed, (...) who are to have absolute liberty in the treatment of their subject. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works. (shrink)