Richard Jeffrey is beyond dispute one of the most distinguished and influential philosophers working in the field of decision theory and the theory of knowledge. His work is distinctive in showing the interplay of epistemological concerns with probability and utility theory. Not only has he made use of standard probabilistic and decision theoretic tools to clarify concepts of evidential support and informed choice, he has also proposed significant modifications of the standard Bayesian position in order that it provide a (...) better fit with actual human experience. Probability logic is viewed not as a source of judgment but as a framework for explaining the implications of probabilistic judgments and their mutual compatability. This collection of essays spans a period of some 35 years and includes what have become some of the classic works in the literature. There is also one completely new piece, while in many instances Jeffrey includes afterthoughts on the older essays. (shrink)

George Boolos was one of the most prominent and influential logician-philosophers of recent times. This collection, nearly all chosen by Boolos himself shortly before his death, includes thirty papers on set theory, second-order logic, and plural quantifiers; on Frege, Dedekind, Cantor, and Russell; and on miscellaneous topics in logic and proof theory, including three papers on various aspects of the Gödel theorems. Boolos is universally recognized as the leader in the renewed interest in studies of Frege's work on logic and (...) the philosophy of mathematics. John Burgess has provided introductions to each of the three parts of the volume, and also an afterword on Boolos's technical work in provability logic, which is beyond the scope of this volume. (shrink)

Richard Rorty is famous, maybe even infamous, for his philosophical nonchalance. His groundbreaking work not only rejects all theories of truth but also dismisses modern epistemology and its preoccupation with knowledge and representation. At the same time, the celebrated pragmatist believed there could be no universally valid answers to moral questions, which led him to a complex view of religion rarely expressed in his writings. In this posthumous publication, Rorty, a strict secularist, finds in the pragmatic thought of John Dewey, (...) John Stuart Mill, William James, and George Santayana, among others, a political imagination shared by religious traditions. His intent is not to promote belief over nonbelief or to blur the distinction between religious and public domains. Rorty seeks only to locate patterns of similarity and difference so an ethics of decency and a politics of solidarity can rise. He particularly responds to Pope Benedict XVI and his campaign against the relativist vision. Whether holding theologians, metaphysicians, or political ideologues to account, Rorty remains steadfast in his opposition to absolute uniformity and its exploitation of political strength. (shrink)

This essay examines one of the cornerstones of Leibniz's defense of teleology within the order of nature. The first section explores Leibniz's contributions to the study of geometrical optics, and argues that his "Most Determined Path Principle" or "MDPP" allows him to bring to the fore philosophical issues concerning the legitimacy of teleological explanations by addressing two technical objections raised by Cartesians to non-mechanistic derivations of the laws of optics. The second section argues that, by drawing on laws such as (...) the MDPP, Leibniz is able to introduce a thin notion of teleology that gives him the resources to respond to the most pressing charges of his day against teleological explanations within natural philosophy. Finally, the third section argues that contemporary philosophers have been overly hasty in their dismissal of Leibniz's account of natural teleology, and indeed that their own generally thin conceptions of teleology have left them with few well-motivated resources for resisting his elegant position. (shrink)

A basic system of inductive logic; An axiomatic foundation for the logic of inductive generalization; A survey of inductive systems; On the condition of partial exchangeability; Representation theorems of the de finetti type; De finetti's generalizations of excahngeability; The structure of probabilities defined on first-order languages; A subjectivit's guide to objective chance.

In this paper I argue that the hoary theological doctrine of divine concurrence poses no deep threat to Leibniz’s views on theodicy and creaturely activity even as those views have been traditionally understood. The first three sections examine respectively Leibniz’s views on creation, conservation and concurrence, with an eye towards showing their sys­tematic compatibility with Leibniz’s theodicy and metaphysics. The fourth section takes up remaining worries arising from the bridging principle that conservation is a continued or continuous creation, and argues (...) that they can be allayed once two readings of the prin­ciple are distinguished. What emerges from the discussion as a whole is, I hope, a clearer picture of Leibniz’s views on the nature of monadic causation, his understanding of the relationship between divine and creaturely activity, and his position with respect to later medieval and early modern debates over secondary causation. (shrink)

What can we know about God by reason alone? Philosophical theology is the attempt to obtain such knowledge. An ancient tradition, which is perhaps more influential now than ever, tries to derive the attributes of God from the principle that God is the greatest possible being. Jeff Speaks argues that that constructive project is a failure. He also argues that the related view that the concept of God is the concept of a greatest possible being is a mistake. In the (...) last chapter, he sketches an alternative path forward. (shrink)

In this paper I argue that the hoary theological doctrine of divine concurrence poses no deep threat to Leibniz’s views on theodicy and creaturely activity even as those views have been traditionally understood. The first three sections examine respectively Leibniz’s views on creation, conservation and concurrence, with an eye towards showing their sys­tematic compatibility with Leibniz’s theodicy and metaphysics. The fourth section takes up remaining worries arising from the bridging principle that conservation is a continued or continuous creation, and argues (...) that they can be allayed once two readings of the prin­ciple are distinguished. What emerges from the discussion as a whole is, I hope, a clearer picture of Leibniz’s views on the nature of monadic causation, his understanding of the relationship between divine and creaturely activity, and his position with respect to later medieval and early modern debates over secondary causation. (shrink)

The current paper examines whether knowledge of an ethical principle influences moral awareness and ethical decision making. Using hypothetical scenarios and a behavioral task, three experiments examine the effects of deepening people’s knowledge of ethical principles. In each study, an analogical encoding learning intervention led to greater knowledge of an ethical principle, which in turn resulted in a greater likelihood of moral awareness and making ethical decisions. These findings suggest that moral awareness is partly a matter of the depth of (...) individuals’ knowledge of ethical principles. The findings provide further reasons to link work on ethics with work on expertise and knowledge transfer as well as indicate new approaches to ethics training. (shrink)

Śrīgupta, a Buddhist philosopher in the Middle Way tradition, was born in Bengal in present-day India in the seventh century. He is best known for his Introduction to Reality with its accompanying auto-commentary,1 in which he presents the first Middle Way iteration of the influential "neither-one-nor-many argument."2 This antifoundationalist line of reasoning sets out to prove that nothing enjoys ontologically independent being.Gottfried Wilhelm Leibniz was born some one thousand years later, in the city of Leipzig, situated on the outskirts of (...) European learning and thought. He is best known today for having co-invented the infinitesimal calculus, for his... (shrink)

From the early 1960s until his death, French philosopher Gilles Deleuze wrote many influential works on philosophy, literature, film, and fine art. One of Deleuze's main philosophical projects was a systematic inversion of the traditional relationship between identity and difference. This Deleuzian philosophy of difference is the subject of Jeffrey A. Bell's Philosophy at the Edge of Chaos. Bell argues that Deleuze's efforts to develop a philosophy of difference are best understood by exploring both Deleuze's claim to be a (...) Spinozist, and Nietzsche's claim to have found in Spinoza an important precursor. Beginning with an analysis of these claims, Bell shows how Deleuze extends and transforms concepts at work in Spinoza and Nietzsche to produce a philosophy of difference that promotes and, in fact, exemplifies the notions of dynamic systems and complexity theory. With these concepts at work, Deleuze constructs a philosophical approach that avoids many of the difficulties that linger in other attempts to think about difference. Bell uses close readings of Plato, Aristotle, Spinoza, Nietzsche, Heidegger, Derrida, and Whitehead to illustrate how Deleuze's philosophy is successful in this regard and to demonstrate the importance of the historical tradition for Deleuze. Far from being a philosopher who turns his back on what is taken to be a mistaken metaphysical tradition, Bell argues that Deleuze is best understood as a thinker who endeavoured to continue the work of traditional metaphysics and philosophy. (shrink)

Full-Blooded religion is not acceptable in mainstream bioethics. This article excavates the cultural history that led to the suppression of religion in bioethics. Bioethicists typically fall into one of the following camps. 1) The irreligious, who advocate for suppressing religion, as do Timothy F. Murphy, Sam Harris, and Richard Dawkins. This irreligious camp assumes American Fundamentalist Protestantism is the real substance of all religions. 2) Religious bioethicists, who defend religion by emphasizing its functions and diminishing its metaphysical commitments. Religious defenders (...) empty religion of its theology to present its feel-good functions in a way that is acceptable to the irreligious. However, religion reduced to its functions dissolves into a counter-culture that may counteract materialism but lacks the power to motivate much more. This article criticizes both camps, as both presume Enlightenment myths and consequently neuter religion. Both irreligious and religious bioethicists commonly presume Enlightenment myths about secularity and religion. Secularity is presumed neutral and rational. Religion is presumed divisive and irrational. This myth provides built-in value-judgements; we have already judged secularity as good and religion as bad. Much of the debate over religion in bioethics is arguing over false stereotypes of religion. Consequently, mainstream bioethics neuters religion, while the irreligious are gifted political power to define the field. (shrink)

The following paper attempts to explore, criticizeand develop Thomas Kuhn's mostmature – and surprisingly neglected – view ofincommensurability. More specifically, itfocuses on (1) undermining an influential picture ofscientific kinds that lies at the heartof Kuhn's understanding of taxonomic incommensurability;(2) sketching an alternativepicture of scientific kinds that takes advantage ofKuhn's partially developed theory ofdisciplinary matrices; and (3) using these two resultsto motivate revisions to Kuhn'stheory of taxonomic incompatibility, as well as, tothe purported bridge betweentaxonomic incompatibility and some of the traditionalproblems associated (...) withincommensurability. (shrink)

We are concerned here with how structural properties of language may come to reflect features of the world in which it evolves. As a concrete example, we will consider how a simple term language might evolve to support the principle of indifference over state descriptions in that language. The point is not that one is justified in applying the principle of indifference to state descriptions in natural language. Instead, it is that one should expect a language that has evolved in (...) the context of facilitating successful action to reflect probabilistic features of the world in which it evolved. (shrink)

Preface : plant theory? -- The first birth of biopower : from plant to animal life in Foucault -- Thinking plants, with Aristotle and Heidegger -- Animal and plant, life and world in Derrida, or, The plant and the sovereign -- From the world to the territory : vegetable life in Deleuze and Guattari, or, What is a rhizome? -- Coda : what difference does it make?

Beyond Consent examines the concept of justice, and its application to human subject research, through the different lenses of various research populations: children, the vulnerable sick, captive and convenient populations, women, people of colour, and subjects in international settings. Separate chapters address the evolution of research policies, implications of the concept of justice for the future of human subject research, and the ramifications of this concept throughout the research enterprise.

There is one critical way we honor great tragedies: by never forgetting. Collective remembrance is as old as human society itself, serving as an important source of social cohesion, yet as Jeffrey Andrew Barash shows in this book, it has served novel roles in a modern era otherwise characterized by discontinuity and dislocation. Drawing on recent theoretical explorations of collective memory, he elaborates an important new philosophical basis for it, one that unveils profound limitations to its scope in relation (...) to the historical past. Crucial to Barash’s analysis is a look at the radical transformations that symbolic configurations of collective memory have undergone with the rise of new technologies of mass communication. He provocatively demonstrates how such technologies’ capacity to simulate direct experience—especially via the image—actually makes more palpable collective memory’s limitations and the opacity of the historical past, which always lies beyond the reach of living memory. Thwarting skepticism, however, he eventually looks to literature—specifically writers such as Walter Scott, Marcel Proust, and W. G. Sebald—to uncover subtle nuances of temporality that might offer inconspicuous emblems of a past historical reality. (shrink)

This essay concerns the extent to which quantitative research in management and organizational studies is divorced from ethics, as alleged in a recent JBE editorial by Zyphur and Pierides. After carefully examining the criticisms set forth by Zyphur and Pierides and the merits of the alternative they propose, I conclude that the problems with QR and the researchers who conduct it are arguably much less extreme that Zyphur and Pierides claim. This conclusion is informed by a sampling of QR studies (...) recently published in management journals, which could be further corroborated by a more thorough review and evaluation of QR studies using principles drawn from the ethics literature. I believe this assessment would indicate that, despite room for improvement, QR and ethics can and do peacefully coexist, and quantitative researchers are largely aware of the problems and opportunities associated with integrating their work with ethics. (shrink)

Cognitive bias presents as a pressing challenge to critical thinking education. While many have focused on how to eliminate or mitigate cognitive bias, others have argued that these biases are better understood as result from adaptive reasoning heuristics which are, in the right conditions, rational modes of reasoning about the world. This approach presents a new challenge to critical thinking education: if these heuristics are rational under the right conditions, does teaching critical thinking undermine student abilities to reason effectively in (...) real life reasoning scenarios? I argue that this challenge calls for a reconception of the goals of critical thinking education to focus on how rational ideals are best achieved or approximated in human reasoners. Critical thinking educators should focus on developing the metacognitive skill to recognize when different cognitive strategies should be used. (shrink)

The case (Dawson et al. 2024) describes an Institutional Review Board (IRB) chair who seeks consultation about waiving the requirement that investigators obtain prospective, informed consent for collection of microbiome samples by swabbing the perianal region of severely burned patients shortly after their admission to an intensive care unit (ICU). We argue that it is ethically permissible to waive informed consent requirements for the perianal swab and that the IRB should approve a waiver as permitted by regulations.

This essay offers an account of the relationship between extended Leibnizian bodies and unextended Leibnizian monads, an account that shows why Leibniz was right to see intimate, explanatory connections between his studies in physics and his mature metaphysics. The first section sets the stage by introducing a case study from Leibniz's technical work on the strength of extended, rigid beams. The second section draws on that case study to introduce a model for understanding Leibniz's views on the relationship between derivative (...) and primitive forces. The third section draws on Leibniz's understanding of the relationship between derivative and primitive forces in order to shed light, in turn, on his understanding of the relationship between extended, material bodies and unextended, immaterial monads. The fourth section responds to a likely objection by arguing that Leibniz's monads may, in a perfectly reasonable sense, be spatially located. (shrink)

This volume of Social Philosophy Today contains a selection of papers presented at the 31st International Social Philosophy Conference (2014), an annual event sponsored by the North American Society for Social Philosophy. The theme of the conference was "Power, Protest, and the Future of Democracy". This volume invites wider discussion of the issues explored at the conference.

Günther Anders, Hannah Arendt, Hans Jonas, Emmanuel Levinas, Karl Làwith, Herbert Marcuse, Leo Strauss, Eric Weil... Non sans quelque paradoxe, la philosophie sociale, politique, métaphysique de l'après-guerre a été largement représentée par des penseurs allemands ou formés en Allemagne, qui avaient la particularité d'avoir été des étudiants de Martin Heidegger et d'être en même temps d'origine juive. Ce volume, issu d'un colloque international tenu à Paris en 2012, a voulu les penser ensemble pour la première fois et étudier sur quel (...) fond historique et intellectuel cette double spécificité a été possible. Quelle dette chacun d'entre eux a-t-il pu contracter à l'égard de ce maître commun et quelle distance ont-ils pu prendre (ou ne pas prendre) par rapport à lui après la Seconde Guerre mondiale? Un double questionnement qui permettra d'écrire une nouvelle page de la philosophie allemande, qui pourrait bien être aussi une page de la philosophie juive au XXe siècle. (shrink)

"Nietzche and Dostoevsky"are collectedessays on Nietzsche Dostoevsky andtwentieth-century intellectual history.".

The works of Hannah Arendt and Albert Camus--two of the most compelling political thinkers of the "resistance generation" that lived through World War II--can still provide penetrating insights for contemporary political reflection. Jeffrey C. Isaac offers new interpretations of these writers, viewing both as engaged intellectuals who grappled with the possibilities of political radicalism in a world in which liberalism and Marxism had revealed their inadequacy by being complicit in the rise of totalitarianism. According to Isaac, self-styled postmodern writers (...) who proclaim the death of grandiose ideologies often fail to recognize that such thinkers as Camus and Arendt had already noted this. But unlike many postmodernists, these two sought to preserve what was worthy in modern humanism--the idea of a common human condition and a commitment to human rights and the dignity of individuals. Isaac shows that both writers advanced the idea of a democratic civil society made up of self-limiting groups. Although they criticized the typical institutions of mass democratic politics, they endorsed alternative forms of local and international organization that defy the principle of state sovereignty. Isaac also shows how Arendt's writings on the Middle East, and Camus's on Algeria, urged the creation of such institutions. The vision of a "rebellious politics" that Arendt and Camus shared is of great relevance to current debates in democratic theory and to the transformations taking place in Europe and the states of the former Soviet Union. (shrink)

Though legal positivism remains popular, HLA Hart’s version has fallen somewhat by the wayside. This is because, according to many, the central task of a theory of law is to explain the so-called ‘normativity of law’. Hart’s theory, it is thought, is not up to the task. Some have suggested modifying the theory accordingly. This paper argues that both Hart’s theory and the normativity of law have been misunderstood. First, a popular modification of Hart’s theory is considered and rejected. It (...) stems from a misunderstanding of Hart and his project. Second, a new understanding of the mysterious but often-mentioned ‘normativity of law’ is presented. Once we have dispelled some misunderstandings of Hart’s view and clarified the sense in which law is supposed to be normative, we see that Hart’s view, unmodified, is well suited to the task of explaining law’s normativity. (shrink)

Teaching critical thinking skill is a central pedagogical aim in many courses. These skills, it is hoped, will be both portable and durable. Yet, both of these virtues are challenged by pervasive and potent cognitive biases, such as motivated reasoning, false consensus bias and hindsight bias. In this paper, I argue that a focus on the development of metacognitive skill shows promise as a means to inculcate debiasing habits in students. Such habits will help students become more critical reasoners. I (...) close with suggestions for implementing this strategy. (shrink)

This paper addresses the debate surrounding epistocracy. While many discussions of epistocracy focus on its instrumental defenses, this paper aims to critically examine the non-instrumental jury argument offered by Jason Brennan. Brennan’s argument equates the rights of individuals in political decisions to their rights in jury decisions, asserting that just as individuals have a right to a competent jury, they likewise have a right to a competent electorate. We disagree. By juxtaposing the costs of enforcing such rights and the severity (...) of the harm prevented by their enforcement, this paper argues in favor of maintaining the right to a competent jury while denying the existence of a right to a competent electorate. The central claim is that while securing a competent jury is feasible and vital, attempting to secure a competent electorate poses significant challenges and may prevent less significant harm than perceived. (shrink)

Pecuniary externalities—costs imposed on third parties mediated through the price system—have typically received little philosophical attention. Recently, this has begun to change. In two separate papers, Richard Endörfer (Econ Philos 38, pp. 221–241, 2022) and Hayden Wilkinson (Philos Public Affairs 50: 202–238, 2022) place pecuniary externalities at center stage. Though their arguments differ significantly, both conclude pecuniary externalities are in some sense morally problematic. If the state is not called on to regulate pecuniary externalities, then, at the very least, individuals (...) should be conscious of how their productive and consumptive decisions affect others by changing prices. We disagree. Both arguments fail, in that neither gives us reason to think pecuniary externalities are cause for moral concern. Unless a new argument emerges, pecuniary externalities should be left alone. (shrink)

Critics have recently argued that reliabilists face trade-off problems, forcing them to condone intuitively unjustified beliefs when they generate lots of true belief further downstream. What these critics overlook is that reliabilism entails that there areside-constraintson belief-formation, on account of which there are some things you should not believe, even if doing so would have very good epistemic consequences. However, we argue that by embracing side-constraints the reliabilist faces a dilemma: she can either hold on to reliabilism, and with it (...) aforementioned side-constraints, but then needs to explain why we should allow the pursuit of justification to get in the way of the acquisition of true belief; or she can deny that there are side-constraints – and in effect give up on reliabilism. We'll suggest that anyone moved by the considerations that likely attract people to reliabilism in the first place – the idea the true belief is good, and as such should be promoted – should go for the second horn, and instead pursue a form ofepistemic utilitarianism. (shrink)

Millennials are a powerful workforce group and are quickly becoming established business leaders, consumers, and investors. Yet, millennials are often described as a uniformly homogeneous generation, despite mounting evidence of variances across their private and workplace behaviors, attitudes and preferences, and personal values. This article examines the personal value orientations of millennials in the Unites States, reporting consistencies, variations, and contrasts based on a large sample drawn from seven diverse universities. Results of this article suggest more similarities across a national (...) population of millennials than differences, suggesting a national identity among American millennials. Practical implications of our findings and future research are discussed. (shrink)

I elucidate a frame of mind that David Wiggins callsrespect for nature, which he understands as a special attitude toward asui generisobject, Natureas such. A person with this frame of mind takes nature to impose defeasible limits on her action, so that there are some courses of action that she will refuse even to entertain, except in circumstances of dire exigency. I defend the reasonableness of respect for nature, drawing upon considerations in Wiggins's work. But I argue that the natural (...) systems that comprise the proper object of respect for nature are notsui generis; they are kindred, for practical reason, to complex social, political, and economic systems that we inhabit. I argue that it is reasonable to treat all such valuable systems with a similar respect, and that this respect is continuous with the respect we owe to persons and to valuable objects more generally. In all of these cases, respect consists, in part, in a disposition to defeasible constraints on practical deliberation. (shrink)

The corporate financial performance (CFP)–corporate social performance (CSP) relationship has been investigated many times over the past few decades, yet the notion of CSP has generally been understood to be a single, monolithic aspect of corporate strategy. This article examines the common CFP–CSP understanding in three distinct ways: (1) by extending the evaluation of CSP as a complex, multistakeholder notion; (2) by analyzing CSP's relationship with the firm's financial performance at a given point in time as a lead (independent) variable (...) in the relationship and as a lag (dependent) variable in the relationship; and (3) for both positive and negative stakeholder relationships. The results indicate that the employee emerges as the stakeholder group most strongly linked to CFP, followed by the consumer stakeholder. The natural environment and the community stakeholder group are minimally associated with CFP. General support is found for a CFP–CSP relationship at a given point in time, with some support found for CSP as a lead (independent) variable. When used as a measure of financial performance, return on assets is more often correlated with CSP than is return on equity. These results and their implications are discussed. (shrink)

In "Pascal's Mugging" (Bostrom 2009), Pascal gives away his wallet for an extremely tiny chance of an extremely large reward. In this continuation of Bostrom's story, Pascal's friend counsels him to take into account the possibility of making mistakes about his true expected utilities, and they consider to what extent this will help Pascal make plans to avoid future muggings.

In a stimulating recent paper, “Violations of the Principle of Sufficient Reason (in Leibniz and Spinoza),” Michael Della Rocca argues that rationalists face a daunting dilemma: either abandon the Principle of Sufficient Reason or embrace a radical, Parmenidian-style monism. The present paper argues that neither historical nor contemporary rationalists need be afraid of Della Rocca’s dilemma. The second section reconstructs Della Rocca’s argument in five steps. The third section argues that Leibniz’s treatment of relations undermines one of those steps in (...) particular and thus provides him—as well as contemporary rationalists—with a way out. The fourth section argues that a similar way out is available to Spinoza, and that it’s a better way out than either of the two options Della Rocca offers on Spinoza’s behalf. The essay concludes with an historically-minded suggestion for those eager to revitalize the once-again popular notion of grounding. (shrink)

Richard Jeffrey, Michael Hendrickson; XIV*—Probabilizing Pathology, Proceedings of the Aristotelian Society, Volume 89, Issue 1, 1 June 1989, Pages 211–226, htt.

In these two essays, two of the most important French thinkers of our time reflect on each other's work. In so doing, novelist/essayist Maurice Blanchot and philosopher Michel Foucault develop a new perspective on the relationship between subjectivity, fiction, and the will to truth. The two texts present reflections on writing, language, and representation which question the status of the author/subject and explore the notion of a "neutral" voice that arises from the realm of the "outside." This book is crucial (...) not only to an understanding of these two thinkers, but also to any overview of recent French thought.Michel Foucault was the holder of a chair at the College de France. Among his works are Madness and Civilization, The Order of Things, Discipline and Punish, and The History of Sexuality Maurice Blanchot, born in 1907, is a novelist and critic. His works include Death Sentence, Thomas the Obscure, and The Space of Literature. (shrink)

This paper examines the concept and moral significance of “childhood interests.” This concept is important in medical decision-making for children and more broadly in the field of pediatric ethics. The authors argue that childhood interests are identifiable components of childhood well-being that carry moral weight. Parents have a special role in protecting and promoting these interests and special obligations to do so. These parental obligations are grounded by the independent interests of the child, as well as the good of society (...) more generally. Because parents have these child-rearing obligations, they must also have the authority and wide discretion necessary to fulfill them. However, while parental discretion is wide, it is not unlimited, for it must be used to safeguard and advance childhood interests. (shrink)

This essay argues that, with his much-maligned “infinite analysis” theory of contingency, Leibniz is onto something deep and important – a tangle of issues that wouldn’t be sorted out properly for centuries to come, and then only by some of the greatest minds of the twentieth century. The first two sections place Leibniz’s theory in its proper historical context and draw a distinction between Leibniz’s logical and meta-logical discoveries. The third section argues that Leibniz’s logical insights initially make his “infinite (...) analysis” theory of contingency more rather than less perplexing. The last two sections argue that Leibniz’s meta-logical insights, however, point the way towards a better appreciation of (what we should regard as) his formal theory of contingency, and its correlative, his formal theory of necessity. (shrink)

Aquinas's views about the morality of lying are well known and often discussed by commentators. But his views about the nature of lying have yet to receive the attention they deserve. In this article, I take some of the first steps necessary to correct this state of affairs by clarifying and offering a limited defense of the account of lying that Aquinas presents in in his Summa Theologiae—more specifically, in that portion of it known as the treatise on truth (Part (...) 2-2, Questions 109–113). (shrink)

Descartes’ work on optics spanned his entire career and represents a fascinating area of inquiry from both the perspectives of the history of science and his systematic natural philosophy. The first of these entries offers a brief account of Descartes' seminal work in optics, the Dioptrique, often translated as the Optics or, more literally, as the Dioptrics. The second entry overview of Descartes’ understanding of light, his derivations of the two central laws of geometrical optics, and a sampling of the (...) optical phenomena he sought to explain. (shrink)