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Bayesianism is our leading theory of uncertainty. Epistemology is defined as the theory of knowledge. So “Bayesian Epistemology” may sound like an oxymoron. Bayesianism, after all, studies the properties and dynamics of degrees of belief, understood to be probabilities. Traditional epistemology, on the other hand, places the singularly non-probabilistic notion of knowledge at centre stage, and to the extent that it traffics in belief, that notion does not come in degrees. So how can there be a Bayesian epistemology?

So-called “traditional epistemology” and “Bayesian epistemology” share a word, but it may often seem that the enterprises hardly share a subject matter. They differ in their central concepts. They differ in their main concerns. They differ in their main theoretical moves. And they often differ in their methodology. However, in the last decade or so, there have been a number of attempts to build bridges between the two epistemologies. Indeed, many would say that there is just one branch of philosophy (...) here—epistemology. There is a common subject matter after all. In this paper, we begin by playing the role of a “bad cop,” emphasizing many apparent points of disconnection, and even conflict, between the approaches to epistemology. We then switch role, playing a “good cop” who insists that the approaches are engaged in common projects after all. We look at various ways in which the gaps between them have been bridged, and we consider the prospects for bridging them further. We conclude that this is an exciting time for epistemology, as the two traditions can learn, and have started learning, from each other. (shrink)

When communal sharing relationships suddenly intensify, people experience an emotion that English speakers may label, depending on context, “moved,” “touched,” “heart-warming,” “nostalgia,” “patriotism,” or “rapture”. We call the emotion kama muta. Kama muta evokes adaptive motives to devote and commit to the CSRs that are fundamental to social life. It occurs in diverse contexts and appears to be pervasive across cultures and throughout history, while people experience it with reference to its cultural and contextual meanings. Cultures have evolved diverse practices, (...) institutions, roles, narratives, arts, and artifacts whose core function is to evoke kama muta. Kama muta mediates much of human sociality. (shrink)

The desire to minimize the number of individual new entities postulated is often referred to as quantitative parsimony. Its influence on the default hypotheses formulated by scientists seems undeniable. I argue that there is a wide class of cases for which the preference for quantitatively parsimonious hypotheses is demonstrably rational. The justification, in a nutshell, is that such hypotheses have greater explanatory power than less parsimonious alternatives. My analysis is restricted to a class of cases I shall refer to as (...) additive. Such cases involve the postulation of a collection of qualitatively identical individual objects which collectively explain some particular observed phenomenon. Especially clear examples of this sort occur in particle physics.1Introduction2Particle physics: a case study3Three kinds of simplicity4Explanatory power5Explanation and non‐observation6Parsimony and scientific methodology7Conclusions. (shrink)

Two objects of valuation are said to be incommensurable if neither is better than the other, nor are they equally good. This negative, coarse-grained characterization fails to capture the nuanced structure of incommensurability. We argue that our evaluative resources are far richer than orthodoxy recognizes. We model value comparisons with the corresponding class of permissible preference orderings. Then, making use of our model, we introduce a potentially infinite set of degrees of approximation to better, worse, and equally good, which we (...) interpret as degrees of commensurability.One payoff is the solution our approach provides to a paradox in population ethics, generated by Parfit's “Continuum Argument”. Parfit imagines a sequence of populations, starting with one consisting of excellent lives and, by a sequence of apparent improvements, reaching a much larger population of lives barely worth living. What he dubs “the Repugnant Conclusion” is that the final population is better than the first. Developing Parfit's response, we argue that some of the populations in the sequence are merely almost better than their immediate predecessors. Almost better is not transitive (unlike better). We offer analogies to other ‘spectrum arguments’, Condorcet's paradox, and to developments in formal epistemology. (shrink)

Neo-Fregeans argue that substantial mathematics can be derived from a priori abstraction principles, Hume's Principle connecting numerical identities with one:one correspondences being a prominent example. The embarrassment of riches objection is that there is a plurality of consistent but pairwise inconsistent abstraction principles, thus not all consistent abstractions can be true. This paper considers and criticizes various further criteria on acceptable abstractions proposed by Wright settling on another one—stability—as the best bet for neo-Fregeans. However, an analogue of the embarrassment of (...) riches objection resurfaces in the metatheory and I conclude by arguing that the neo-Fregean program, at least insofar as it includes a platonistic ontology, is fatally wounded by it. (shrink)

In this reinterpretation and reconstruction of Spinoza's thought, Donagan (humanities, Caltech) demonstrates that it was Spinoza's unique usage of traditional philosophical vocabulary that resulted in the history of misunderstanding that is his continuing fate. Annotation copyrighted by Book News, Inc., Portland, OR.

According to the so-called ‘deliberation crowds out prediction’ thesis, while deliberating about what you’ll do, you cannot rationally have credences for what you’ll do – you cannot rationally have option-credences. Versions of the thesis have been defended by authors such as Spohn, Levi, Gilboa, Price, Louise, and others. After registering a number of concerns about the thesis, I rehearse and rebut many of the main arguments for it, grouped according to their main themes: agency, vacuity, betting, and decision-theoretical considerations. I (...) go on to suggest many possible theoretical roles for option-credences. -/- I locate the debate about the thesis in a broader discussion: Are there rational credence gaps – propositions to which one cannot rationally assign credences? If there are, they spell trouble for various foundations of Bayesian epistemology, including the usual ratio formula for conditional probability, conditionalization, decision theory, and independence. According to the thesis, credence gaps are completely mundane; they arise every time someone rationally deliberates. But these foundations are safe from any threat here, I contend, since the thesis is false. Deliberation welcomes prediction. (shrink)

The intersection of development and evolution has always harbored conceptual issues, but many of these are on display in contemporary evolutionary developmental biology (evo-devo). These issues include: (1) the precise constitution of evo-devo, with its focus on both the evolution of development and the developmental basis of evolution, and how it fits within evolutionary theory; (2) the nature of evo-devo model systems that comprise the material of comparative and experimental research; (3) the puzzle of how to understand the widely used (...) notion of 'conserved mechanisms'; (4) the definition of evolutionary novelties and expectations for how to explain them; and (5) the demand of interdisciplinary collaboration that derives from investigating complex phenomena at key moments in the history of life, such as the fin-limb transition. This Element treats these conceptual issues with close attention to both empirical detail and scientific practice to offer new perspectives on evolution and development. This title is also available as Open Access on Cambridge Core. (shrink)

Parents can benefit their offspring by conserving resources that the offspring stand to inherit. Thus, inheritance of resources should promote the evolution of propensities to conserve. But inheritance also has another, less obvious effect: it can reduce the fertility of the conserver’s grandchildren, thus reducing the expected number of great-grandchildren. Consequently, inheritance of resources promotes the evolution of conservation less than might be supposed.

The focus of this essay is on how we overcome the past by dealing with it. In this setting, the analysis is of the relationship between ‘moral transactions’ concerning blame, guilt, responsibility, apology and forgiveness and the possibility of transition away from states of trauma. The first section draws on previous work to set out a position on human love as the basis for an understanding of guilt and the ‘moral grammar’ of justice. The second section considers Martha Nussbaum’s claim (...) in Anger and Forgiveness that the idea of transition should be prioritized at the cost of a moral transactional analysis that would engage the moral grammar of blame, guilt, responsibility, apology and forgiveness. The latter is seen as potentially obstructing the transition to a better world. I suggest to the contrary there are grounds for thinking that a successful transition requires relevant moral transactions. (shrink)

One of the most pressing challenges facing virtue theorists is the conflation problem. This problem concerns the difficulty of explaining the distinction between different types of virtue, such as the distinction between moral virtues and intellectual virtues. Julia Driver has argued that only an outcomes-based understanding of virtue can provide an adequate solution to the conflation problem. In this paper, I argue against Driver’s outcomes-based account, and propose an alternative motivations-based solution. According to this proposal, intellectual virtues can be identified (...) by the shared motivation for cognitive contact with reality, while moral virtues are identified by appeal to the characteristic motivations of kindness and justice. I defend the proposal by demonstrating that it produces plausible verdicts concerning the virtue status of candidate moral and intellectual virtues. (shrink)

A conception of the relation between reasons for belief, justified belief, and knowledge is outlined on which a belief is justified, in the sense of being well‐founded, only if there is an adequate reason to believe it, reasons to believe something are constituted by truths, and a reason to believe something justifies one in believing it only if it is constituted by a truth or truths that one knows. It is argued that, contrary to initial appearances, perceptual justification does not (...) pose a problem for this view. The discussion touches upon the relation between believing for reasons and reflective knowledge. (shrink)

A not-unpopular position in the metaphysics of material objects (Ted Sider's, for instance) combines realism about what objects there are and the conditions of objecthood with conventionalism about de re modality. I argue that this is not a coherent combination of views: one must go fully conventionalist, or fully realist. The central argument displays the difficulty for the modal conventionalist/object realist in specifying the object that satisfies de re modal predicates. I argue that if this is a mind-independent object, contradictions (...) arise when we consider the possibility or actuality of non-equivalent conventions both applying to 'the same object'. (shrink)

Honesty is widely accepted as a prime example of a moral virtue. And yet, honesty has been surprisingly neglected in the recent drive to account for specific virtuous traits. This paper provides a framework for an increased focus on honesty by proposing success criteria that will need to be met by any plausible account of honesty. It then proposes a motivational account on which honesty centrally involves a deep motivation to avoid deception. It argues that this account satisfies the required (...) success criteria and discusses why (and when) honesty can be accepted as a moral virtue. Finally, it highlights some implications of accepting a motivational account of honesty for future work on encouraging the development of honesty, and on the relationship between different types of virtue. (shrink)

An important goal of ethical investment is to influence companies to improve their ethical and environmental performance. The principal means that many ethical funds employ is passive market signalling, which may not, on its own, have a significant effect. A much more promising approach may be active engagement. This paper reports on a questionnaire study of a sample of 1146 ethical investors in order to assess whether U.K. ethical investors would support more activist ethical investment and whether they would be (...) prepared to invest in companies which are failing ethically in order to do so. The results show general support for the current practice of passive signalling accompanied by "soft" engagement in the form of lobbying and the development of dialogue in order to improve corporate practice. The "harder" options of investing in companies that err in order to change them is, however, favoured by consistent minorities. (shrink)

ABSTRACT Both Constant and Spencer are moralists who want to encourage individual human perfection. But for Constant, politics has moral value even in a laissez-faire state, whereas for Spencer political participation has no moral value in itself. For Constant, from a moral perspective the historical change from an ancient to a modern conception of liberty is not absolute, and he wishes to retain, in a subordinate role, certain aspects of ancient liberty in modern societies. For Spencer, the historical evolution from (...) militant to industrial society involves the complete separation of politics from any positive moral good. In an industrial society, altruism has no connection with politics, and attempt to bring altruism into politics are not only doomed to failure but iare unjust and therefore immoral. Spencer is a leading figure in the separation of classical liberal thought from perfectionist morality that flourishes in the twentieth century. The separation between classical and modern liberalism that takes place in the fin de siècle is not just a matter of economics – as is shown by the fact that both Spencer and Constant are ardent apostles of laissez-faire – it is above all a question of different attitudes to morality. (shrink)

Discussions of the evidential argument from evil generally pay little attention to how different models of divine providence constrain the theist's options for response. After describing four models of providence and general theistic strategies for engaging the evidential argument, I articulate and defend a definition of 'gratuitous evil' that renders the theological premise of the argument uncontroversial for theists. This forces theists to focus their fire on the evidential premise, enabling us to compare models of providence with respect to how (...) plausibly they can resist it. I then assess the four models, concluding that theists are better off vis-à-vis the evidential argument if they reject meticulous providence. (shrink)

What is new here is the detailed discussion of several important results in the classical foundations of mathematics and of the relation of logic to mathematics. As regards logical questions, the central thesis of Wittgenstein's later philosophy is well known, both from the earlier posthumous volume and from the writings of his many disciples. In the Investigations the thesis is applied to the "logic of our expressions" in everyday contexts; here he discusses in the same spirit the more specialized language (...) used in talking about the foundations of mathematics. (shrink)

The Routledge Handbook of Mechanisms and Mechanical Philosophy is an outstanding reference source to the key topics, problems, and debates in this exciting subject and is the first collection of its kind. Comprising over thirty chapters by a team of international contributors, the Handbook is divided into four Parts: Historical perspectives on mechanisms The nature of mechanisms Mechanisms and the philosophy of science Disciplinary perspectives on mechanisms. Within these Parts central topics and problems are examined, including the rise of mechanical (...) philosophy in the seventeenth century; what mechanisms are made of and how they are organized; mechanisms and laws and regularities; how mechanisms are discovered and explained; dynamical systems theory; and disciplinary perspectives from physics, chemistry, biology, biomedicine, ecology, neuroscience, and the social sciences. Essential reading for students and researchers in philosophy of science, the Handbook will also be of interest to those in related fields, such as metaphysics, philosophy of psychology, and history of science. (shrink)

Explicates the mutually fundamental commonalities between the methods and practices of Western psychotherapies, especially those whose bases are social, interpersonal, and communicational, and the disciplines of Buddhism, Vedanta, Yoga, and Taoism.

This paper discusses comparison classes—sets that relativize the interpretation of gradable adjectives, often specified with for-clauses as in John is smart for a linguist. Such a discussion ultimately lends support to the thesis that scales, degrees, measure functions, and linear orders are grammatically derived from more basic relations between individuals. Three accounts of comparison classes are compared and evaluated. The first proposes that such classes serve as an argument to a function that determines a standard of comparison. The second maintains (...) that these classes restrict the domain of a measure function used to map entities to degrees. The third proposes that these classes limit the kind of individuals that participate in a binary relation; this relation is then used in the construction of a scale and a measure function. It is this third account that is most consistent with the empirical data. It can explain how comparison classes fix a standard of comparison, induce presuppositions concerning the comparative subjects, and induce incommensurability in comparative constructions. (shrink)

The longstanding interest in business ethics has been given renewed emphasis by high profile scandals in the world of business and finance. At the same time, many economists--dissatisfied with the discipline's emphasis on self-interest and individualism and by the asocial nature of much economic theory--have sought to englarge the scope of economics by looking at ethical questions. In Ethics and Economic Affairs a group of interdisciplinary scholars provide contributions on international interest in this aspect of socio-economics and economic-psychology. The book (...) is divided into four parts. The first looks at Business Ethics and Management. Part Two enlivens the debate with empirical data. The third part examines the implications for economic theory and asks if the integration of ethics in the economy is possible or if they are fundamentally different systems. Part Four introduces perspectives from other disciplines, sets economics within its wider context and looks to the future. The editors have brought together a group of contributors from nine different countries and a broad range of disciplines, including: Norman E. Bowie, Monroe Burk, Amitai Etzioni, Richard H. Guerette, Ralph E. Miner, Lynne M. Rosansky, N. Craig Smith, Roberts Stallaerts, Philip Stone and John Tomer. (shrink)

Philosophy has a wealth of heuristics—philosophical heuristics—although they have not been well documented or studied. Sometimes they draw attention to a problem with a philosophical position—for example, it involves a problematic definite description, or it has to make a choice that seems arbitrary. Sometimes they provide solutions to a problem—for example, there are many techniques for handling arbitrariness. Sometimes they suggest ways of replacing hard problems with easier ones, with strategies for approaching the latter—for example, replacing intensional notions with extensional (...) surrogates, and then perhaps diagramming the latter. Sometimes they appeal to fertile modes of thinking more generally—for example, continuity reasoning. Philosophers have been becoming increasingly self-conscious of their methodology, yet I believe that the study of such heuristics has been surprisingly neglected. This chapter highlights the importance of philosophical heuristics to philosophical methodology. It considers especially a cluster involving the notion of resemblance. (shrink)

We can distinguish ‘mechanical’ in the strict sense of the mechanical philosophers from ‘mechanical’ in the common sense. My claim is that Boyle's experimental science owed nothing to, and offered no support for, the mechanical philosophy in the strict sense. The attempts by my critics to undermine my case involve their interpreting ‘mechanical’ in something like the common sense. I certainly accept that Boyle's experimental science was productively informed by mechanical analogies, where ‘mechanical’ is interpreted in a common sense. But (...) this leaves my original claim untouched and, in the main, unchallenged.Keywords: Boyle; Mechanism; Mechanical philosophy; Corpuscular philosophy; Reductionism. (shrink)

The themes of the book—the value of knowledge and epistemic appraisal broadly conceived—are introduced in this chapter. The Meno problem is explained and related to the swamping problem as discussed by Jonathan Kvanvig. The stance of virtue epistemologists is outlined. This is followed by a brief discussion of the role of truth in epistemic appraisal. The remainder of the introduction summarises the contributions to the book.