This chapter analyzes the relation between brain sciences and philosophy of mind, in order to clarify in what ways philosophy can contribute to neuroscience and neuroscience can contribute to philosophy. Especially since the 1980s and the emergence of “neurophilosophy”, more and more philosophers have been bringing home morals from neuroscience to settle philosophical issues. I mention examples from the problem of consciousness, philosophy of perception and the problem of free will, and I argue that such attempts are not successful (...) in trying to settle questions like whether psychology can be reduced to neuroscience, whether we see the external world directly in perception, or whether we have free will. The failure results from an ability of the philosophical questions to evade the data. What makes these questions persisting philosophical questions is precisely that there is no way to settle them through empirical evidence, as they are conceptual questions and their solution lies in conceptual analysis. (shrink)

This volume presents two Leibnizian writings, the Specimen of Philosophical Questions Collected from the Law and the Dissertation on Perplexing Cases. These works, originally published in 1664 and 1666, constitute, respectively, Leibniz's thesis for the title of Master of Philosophy and his doctoral dissertation in law. Besides providing evidence of the earliest development of Leibniz's thought and amazing anticipations of his mature views, they present a genuine intellectual interest, for the freshness and originality of Leibniz's reflections on a striking (...) variety of logico-philosophical puzzles drawn from the law. The Specimen addresses puzzling issues resulting from apparent conflicts between law and philosophy (the latter broadly understood as comprising also mathematics, as well as empirical sciences). The Dissertation addresses cases whose solution is puzzling because of the convoluted logical form of legal dispositions and contractual clauses, or because of conflicting priorities between concurring parties. In each case, Leibniz dissects the problems with the greatest ingenuity, disentangling their different aspects, and proposing solutions always reasonable and sometimes surprising. And he does not refrain from peppering his intellectual acrobatics with some humorous comments. bbbbbb. (shrink)

As this book richly and entertainingly demonstrates, philosophy is as much the search for the right questions as it is the search for the right answers. Robert M. Martin’s popular collection of philosophical puzzles, paradoxes, jokes, and anecdotes is updated and expanded in this third edition, with dozens of new entries.

Martin provides fascinating discussions of each problem or puzzle, and appends suggestions for further reading. Where the puzzle or problem admits of a right answer, Martin provides it in a separate section. But he also often ends with a question; as this book richly and entertainingly demonstrates, philosophy is as much the search for the right questions as it is for the right answers. There are many new entries in this edition, including "God as the Tortoise on the Bottom," "Free (...) Beer," "How to Win a Camel Anti-Race," "Watch out for Extreme Politeness," and "The Enormous Tiddly-Wink Tournament.". (shrink)

As this book richly and entertainingly demonstrates, philosophy is as much the search for the right questions as it is the search for the right answers. Robert M. Martin’s popular collection of philosophical puzzles, paradoxes, jokes, and anecdotes is updated and expanded in this third edition, with dozens of new entries.

An epistemologist tells you that knowledge is more than justified true belief. You trust them and thus come to believe this on the basis of their testimony. Did you thereby come to know that this view is correct? Intuitively, there is something intellectually wrong with forming philosophical beliefs on the basis of testimony, and yet it's hard to see why philosophy should be significantly epistemically different from other areas of inquiry in a way that would fully prohibit belief by (...) testimony. This, I argue, is the puzzle of philosophical testimony. In this paper, I explore the puzzle of philosophical testimony and its ramifications. In particular, I examine the case for pessimism about philosophical testimony—the thesis that philosophical belief on the basis of testimony is impossible or is in some way illegitimate—and I argue that it lacks adequate support. I then consider whether the source of the apparent intellectual wrongness of testimonial‐based philosophical belief is grounded in non‐epistemic norms and goals of philosophical practice itself and argue that such norms are implausible, don't conflict with testimonial‐based philosophical belief, or else are mere disciplinary norms, lacking substantial normative force that would make it wrong to form testimonial‐based philosophical belief. (shrink)

_Puzzled?!_ seamlessly fuses two traditional approaches to the study of philosophy at the introductory level. It is thematic, examining fundamental issues in epistemology, metaphysics, philosophy of religion, and more. It is also historical, introducing major philosophical arguments that have arisen throughout the history of Western philosophy. But its real innovation lies elsewhere. Each of its twelve chapters begins with a traditional argument of a thoroughly puzzling kind: a valid philosophical argument with highly plausible premises but a surprising conclusion. (...) The remainder of the chapter shows how major innovations in the history of philosophy arise as logical responses to that argument. Written with a light touch, _Puzzled?!_ nevertheless offers a rigorous introduction to the ideas it explores and to the foundations of critical thinking itself. It will serve as effectively as a main or supplementary text in an introduction to critical thinking as it will in Philosophy 101. (shrink)

An epistemologist tells you that knowledge is more than justified true belief. You trust them and thus come to believe this on the basis of their testimony. Did you thereby come to know that this view is correct? Intuitively, there is something intellectually wrong with forming philosophical beliefs on the basis of testimony, and yet it's hard to see why philosophy should be significantly epistemically different from other areas of inquiry in a way that would fully prohibit belief by (...) testimony. This, I argue, is the puzzle of philosophical testimony. In this paper, I explore the puzzle of philosophical testimony and its ramifications. In particular, I examine the case for pessimism about philosophical testimony—the thesis that philosophical belief on the basis of testimony is impossible or is in some way illegitimate—and I argue that it lacks adequate support. I then consider whether the source of the apparent intellectual wrongness of testimonial‐based philosophical belief is grounded in non‐epistemic norms and goals of philosophical practice itself and argue that such norms are implausible, don't conflict with testimonial‐based philosophical belief, or else are mere disciplinary norms, lacking substantial normative force that would make it wrong to form testimonial‐based philosophical belief. (shrink)

A Cabinet of Philosophical Curiosities is a collection of puzzles, paradoxes, riddles, and miscellaneous logic problems. Depending on taste, one can partake of a puzzle, a poem, a proof, or a pun.

In the paper I tackle a puzzle by Goldberg that challenges all of us as philosophers. There are three plausible thesis, separately defensible, that together seem to lead to a contradiction: 1) Reliability is a necessary condition for epistemic justification. 2) On contested matters in philosophy, philosophers are not reliable. 3) At least some philosophical theses regarding contested matters in philosophy are epistemically justified. In this paper I will assess the status of the puzzle and attempt to solve it. (...) In the first section, I'll present the puzzle with a little more detail. Secondly, I'll provide some general arguments to show that the alleged puzzle is not a legitimate one. Finally, in section 3, I will argue that even assuming that the puzzle can be coherently formulated, Goldberg's arguments in favor of premise are either unsound or too limited in their scope in order to represent a significant or interesting problem for philosophers. (shrink)

This paper presents a puzzle about justification and withholding. The puzzle arises in a special case where experts advise us to not withhold judgment. My main thesis is simply that the puzzle is genuinely a puzzle, and so leads us to rethink some common assumptions in epistemology, specifically assumptions about the nature of justification and doxastic attitudes. Section 1 introduces the common assumptions. Section 2 presents the puzzle case. Section 3 assesses the puzzle case. Section 4 explains the choice we're (...) faced with. Sections 5 and 6 consider and reject some proposed solutions, and in the process refine and clarify the choice we're faced with. Section 7 considers and rejects a miscellany of different proposed solutions. (shrink)

The puzzle of imaginative desire arises from the difficulty of accounting for the surprising behaviour of desire in imaginative activities such as our engagement with fiction and our games of pretend. Several philosophers have recently attempted to solve this puzzle by introducing a class of novel mental states—what they call desire-like imaginings or i-desires. In this paper, I argue that we should reject the i-desire solution to the puzzle of imaginative desire. The introduction of i-desires is both ontologically profligate and (...) unnecessary, and, most importantly, fails to make sense of what we are doing in the imaginative contexts in question. (shrink)

It is a fundamental feature of language that words refer to things. Much attention has been devoted to the nature of reference, both in philosophy and in linguistics. Puzzles of Reference is the first book to give a comprehensive accessible survey of the fascinating work on this topic from the 1970s to the present day. -/- Written by two eminent philosophers of language, Puzzles of Reference offers an up-to-date introduction to reference in philosophy and linguistics, summarizing ideas such (...) as Kripke's revolutionary theory and presenting the various challenges in a clear and accessible manner. As the text does not assume prior training in philosophy or linguistics, it is ideal for use as part of a philosophy of language course for philosophy students or for linguistics students. -/- Puzzles of Reference belongs to the series Contemporary Introductions to Philosophy of Language, in which each book provides an introduction to an important area of the philosophy of language, suitable for students at any level. (shrink)

A famous mathematical theorem says that the sum of an infinite series of numbers can depend on the order in which those numbers occur. Suppose we interpret the numbers in such a series as representing instances of some physical quantity, such as the weights of a collection of items. The mathematics seems to lead to the result that the weight of a collection of items can depend on the order in which those items are weighed. But that is very hard (...) to believe. A puzzle then arises: How do we interpret the metaphysical significance of this mathematical theorem? I first argue that prior solutions to the puzzle lead to implausible consequences. Then I develop my own solution, where the basic idea is that the weight of a collection of items is equal to the limit of the weights of its finite subcollections contained within ever-expanding regions of space. I show how my solution is intuitively plausible and philosophically motivated, how it reveals an underexplored line of metaphysical inquiry about quantities and locations, and how it elucidates some classic puzzles concerning supertasks. (shrink)

Many philosophers have argued or taken for granted that Frege's puzzle has little or nothing to do with identity statements. I show that this is wrong, arguing that the puzzle can only be motivated relative to a thinker's beliefs about the identity or distinctness of the relevant object. The result is important, as it suggests that the puzzle can be solved, not by a semantic theory of names or referring expressions as such, but simply by a theory of identity statements. (...) To show this, I sketch a framework for developing solutions of this sort. I also consider how this result could be implemented by two influential solutions to Frege's puzzle, Perry's referential-reflexivism and Fine's semantic relationism. (shrink)

In this paper I will present a puzzle about visual appearance. There are certain necessary constraints on how things can visually appear. The puzzle is about how to explain them. I have no satisfying solution. My main thesis is simply that the puzzle is a puzzle. I will develop the puzzle as it arises for representationalism about experience because it is currently the most popular theory of experience and I think it is along the right lines. However, everyone faces a (...) form of the puzzle, including the naïve realist. In §1 I explain representationalism about experience. In §§2-3 I develop the puzzle and criticize a response due to Ned Block and Jeff Speaks and another response based on a novel form of representationalism (“sensa representationalism”). In §4 I argue that defenders of “perceptual confidence” (Morrison, Munton, my earlier self) face an instance of the puzzle. In §5 I suggest that everyone faces a form of the puzzle. (shrink)

Despite the problems students often have with the theory of knowledge, it remains, necessarily, at the core of the philosophical enterprise. As experienced teachers know, teaching epistemology requires a text that is not only clear and accessible, but also capable of successfully motivating the abstract problems that arise.In Knowledge Puzzles, Stephen Hetherington presents an informal survey of epistemology based on the use of puzzles to illuminate problems of knowledge. Each topic is introduced through a puzzle, and readers (...) are invited to work their own ways toward a solution. Hetherington’s light and undogmatic style encourages class discussion and independent thought rather than the memorization of “book” answers.Covering all of the most important epistemological issues, informed by classical and contemporary literature, and rich in probing questions and suggestions for further readings, Knowledge Puzzles is a pedagogical breakthrough. Whether it is used as a main text or supplement, this lucid and engaging text will be welcomed by both teachers and students. (shrink)

What Should I Do? is a collection of some of the most interesting questions about ethics to have appeared on the website during its first five years.

Most of our best scientific descriptions of the world employ rates of change of some continuous quantity with respect to some other continuous quantity. For instance, in classical physics we arrive at a particle’s velocity by taking the time-derivative of its position, and we arrive at a particle’s acceleration by taking the time-derivative of its velocity. Because rates of change are defined in terms of other continuous quantities, most think that facts about some rate of change obtain in virtue of (...) facts about those other continuous quantities. For example, on this view facts about a particle’s velocity at a time obtain in virtue of facts about how that particle’s position is changing at that time. In this paper we raise a puzzle for this orthodox reductionist account of rate of change quantities and evaluate some possible replies. We don’t decisively come down in favour of one reply over the others, though we say some things to support taking our puzzle to cast doubt on the standard view that spacetime is continuous. (shrink)

The social world contains institutions, groups, objects, and more. This essay explores a puzzle about the essences of social items. There is widespread consensus against social essences because of problematic presuppositions often made about them. But it is argued that essence can be freed from these presuppositions and their problems. Even so, a puzzle still arises. In a Platonic spirit, essences in general seem detached from the world. In an Aristotelian spirit, social essences in particular seem embedded in the world. (...) The puzzle is that these inclinations are individually plausible but jointly incompatible. The essay has four aims: to clarify and refine the puzzle; to explore the puzzle's implications for essence in general and for social essences in particular; to illustrate the fruitfulness of the general distinction between detached and embedded; and to develop this distinction to sketch a novel solution to the puzzle. (shrink)

It is commonly accepted that people can, and regularly do, deceive themselves. Yet closer examination reveals a set of conceptual puzzles that make self-deception difficult to explain. Applying the conditions for other-deception to self-deception generates what are known as the ‘paradoxes’ of belief and intention. Simply put, the central problem is how it is possible for me to believe one thing, and yet intentionally cause myself to simultaneously believe its contradiction. There are two general approaches taken by philosophers to (...) account for these puzzles about the self-deceptive state and the process of self-deception. ‘Partitioning’ strategies try to resolve the paradoxes by proposing that the mind is divided in some way that allows self-deception to occur. ‘Reformulation’ strategies suggest that the conditions we use to define self-deception should be modified so that the paradoxes do not arise at all. Both approaches are subject to criticism about the consequences of the strategies philosophers use, but recent cross-disciplinary analyses of self-deception may help shed light on the puzzles that underlie this phenomenon. (shrink)

Inquiry is guided, in the minimal sense that it is not haphazard. It is also often thought to have as a natural stopping point ceasing to inquire, once inquiry into a question yields knowledge of an answer. On this picture, inquiry is both telic and guided. By contrast, mind-wandering is unguided and atelic, according to the most extensively developed philosophical theory of it. This paper articulates a puzzle that arises from this combination of claims: there seem to be plenty (...) of examples of inquiry progressing within mind-wandering, yet theories of inquiry and mind-wandering can make wandering inquiry seem impossible or incoherent. I offer several solutions to this puzzle and make the case that taken together, they illuminate a prevalent form of inquiry that the burgeoning literature on that topic overlooks: inquiry that progresses spontaneously. (shrink)

This is the 1991 (2nd) edition of the 1986 book (MIT Press), considered to be the classic defense of Millianism. The nature of the information content of declarative sentences is a central topic in the philosophy of language. The natural view that a sentence like "John loves Mary" contains information in which two individuals occur as constituents is termed the naive theory, and is one that has been abandoned by most contemporary scholars. This theory was refuted originally by philosopher Gottlob (...) Frege. His argument that the naive theory did not work is termed Frege's puzzle, and his rival account of information content is termed the orthodox theory. In this detailed study, Nathan Salmon defends a version of the naive theory and presents a proposal for its extension that provides a better picture of information content than the orthodox theory gives. He argues that a great deal of what has generally been taken for granted in the philosophy of language over the past few decades is either mistaken or unsupported, and consequently, much current research is focused on the wrong set of questions. Salmon dissolves Frege's puzzle as it is usually formulated and demonstrates how it can be reconstructed and strengthened to yield a more powerful objection to the naive theory. He then defends the naive theory against the new Frege puzzle by presenting an idea that yields both a surprisingly rich and powerful extension of the naive theory and a better picture of information content than that of the original orthodox theory. Nathan Salmon is Professor of Philosophy, University of California at Santa Barbara. (shrink)

‘Rule-following’ is a name for a cluster of phenomena where we seem both guided and “normatively” constrained by something general in performing particular actions. Understanding the phenomenon is important because of its connection to meaning, representation, and content. This article gives an overview of the philosophical discussion of rule-following with emphasis on Kripke’s skeptical paradox and recent work on possible solutions. Part I of this two-part contribution was devoted to the basic issues from Wittgenstein to Kripke. Part II is (...) about recent answers to the skeptical paradox and Boghossian’s and Wright’s new puzzles. (shrink)

The “puzzle of the unmarked clock” derives from a conflict between the following: (1) a plausible principle of epistemic modesty, and (2) “Rational Reflection”, a principle saying how one’s beliefs about what it is rational to believe constrain the rest of one’s beliefs. An independently motivated improvement to Rational Reflection preserves its spirit while resolving the conflict.

Imagine your mirror‐inverted counterpart on Mirror Earth, a perfect mirror image of Earth. Would her experiences be the same as yours, or would they be phenomenally mirror‐inverted? I argue, first, that her experiences would be phenomenally the same as yours. I then show that this conclusion gives rise to a puzzle, one that I believe pushes us toward some surprising and philosophically significant conclusions about the nature of perception. When you have a typical visual experience as of something to your (...) left, the following three claims seem very plausible: (1) No one could have an experience phenomenally just like yours without thereby having an experience as of something to her left. (2) Your experience is veridical. (3) Your experience doesn't differ from that of your mirror‐inverted counterpart with respect to veridicality. But (1)‐(3) jointly contradict the claim that you and your mirror‐inverted counterpart would have the same experiences. I argue that any viable response to this puzzle will embrace the following disjunction: either there is a degree of independence between perceptual phenomenology and representational content, contrary to popular intentionalist views of perception, or spatial subjectivism is true, where spatial subjectivism is the view that the spatial properties presented in perception are either mind‐dependent or illusory. (shrink)

Among the many functions of models, explanation is central to the functioning and aims of science. However, the discussions surrounding modeling and explanation in philosophy have largely remained separate from each other. This chapter seeks to bridge the gap by focusing on the puzzle of model-based explanation, asking how different philosophical accounts answer the following question: if idealizations and fictions introduce falsehoods into models, how can idealized and fictional models provide true explanations? The chapter provides a selective and critical (...) overview of the available strategies for solving this puzzle, mainly focusing on idealized models and how they explain. (shrink)

When beer starts to flow, philosophical discussions naturally follow. _Philosophy on Tap_ takes pub philosophy to the next level, pairing 48 of life's greatest philosophical questions with 48 of the world's best beers. Features a unique presentation of philosophical puzzles, paradoxes, and debates by considering 48 of life's biggest questions in the context of 48 distinctive beers from around the world Provides a highly engaging and sociable approach to the classic philosophical problems as well as (...) a unique look at the conundrums that directly affect the beer drinker Combines a philosopher's insights with thematic humor and trivia to explore issues such as free will, God's existence, the nature of the soul, time travel, the aesthetics of taste, the role of beer in the good life, and the infamous "beer goggles" paradox For beer drinkers who enjoy philosophy, philosophers who enjoy beer, and anyone who has ever pondered the meaning of life over a pint of ale. (shrink)

In this paper I will present a puzzle about epistemic akrasia, and I will use that puzzle to motivate accepting some non-standard views about the nature of epistemological judgment. The puzzle is that while it seems obvious that epistemic akrasia must be irrational, the claim that epistemic akrasia is always irrational amounts to the claim that a certain sort of justified false belief—a justified false belief about what one ought to believe—is impossible. But justified false beliefs seem to be possible (...) in any domain, and it’s hard to see why beliefs about what one ought to believe should be an exception. I will argue that when we get clearer about what sort of psychological state epistemic akrasia is, we can resolve the puzzle in favor of the intuitive view that epistemic akrasia is always irrational. (shrink)

Sainsbury and Tye present a new theory, 'originalism', which provides natural, simple solutions to puzzles about thought that have troubled philosophers for centuries. They argue that concepts are to be individuated by their origin, rather than epistemically or semantically. Although thought is special, no special mystery attaches to its nature.

Mereological nihilism is the view that no objects have proper parts. Despite how counter‐intuitive it is, it is taken quite seriously, largely because it solves a number of puzzles in the metaphysics of material objects – or so its proponents claim. In this article, I show that for every puzzle that mereological nihilism solves, there is a similar puzzle that (a) it doesn’t solve, and (b) every other solution to the original puzzle does solve. Since the solutions to the (...) new puzzles apply just as well to the old puzzles, the old puzzles provide no motivation to be a mereological nihilist. (shrink)

The Puzzle of Imaginative Failure asks why, when readers are invited to do so, they so often fall short of imagining worlds where the moral facts are different. This is puzzling because we have no difficulty imagining worlds where the descriptive facts are different. Much of the philosophical controversy revolves around the question of whether the reader's lack of imagination in such cases is a result of psychological barriers (an inability or a difficulty on the reader's part to imagine (...) what she is asked to imagine) or whether it is instead a result of wilful resistance (a desire not to imagine what she's asked to imagine). I argue for a different kind of solution. I maintain the primary reason for such systematic failures on the reader's part is due to an inability on the author's part to make clear that she is inviting the reader to engage in such imaginings. (shrink)

Pejoratives are the class of expressions that are meant to insult or disparage. They include swear words and slurs. These words allow speakers to convey emotional states beyond the truth-conditional contents that they are normally taken to encode. The puzzle arises because, although pejoratives seem to be a semantically unified class, some of their occurrences are best accounted for truth-conditionally, while others are best accounted for non-truth-conditionally. Where current, non-truth-conditional, views in the literature fail to provide a unified solution for (...) the puzzle, this paper motivates a novel, semantic, analysis of pejorative language. The significance of the proposed solution is not only linguistic in nature, but also philosophical, as it both provides a new argument for, and sheds further light on, the nature of semantic externalism. (shrink)

In this paper, we argue that the popular claim that laws of nature explain their instances creates a philosophical puzzle when it is combined with the widely held requirement that explanations need to be underpinned by ‘wordly’ relations. We argue that a “direct solution” to the puzzle that accounts for both explanatory laws and explanatory realism requires endorsing at least a radical metaphysics. Then, we examine the ramifications of a “skeptical solution”, i.e., dissolving it by giving up at least (...) one of these two claims, and argue that adopting it is more favorable to Humean reductionists than to anti-reductionists about laws of nature. (shrink)

We present a new puzzle about logical truth, necessity, and moral responsibility. We defend one solution to the puzzle. A corollary of our preferred solution is that prominent arguments for the incompatibility of determinism and moral responsibility are invalid.

The ordinary conception of pain has two major threads that are in tension with each other. It is this tension that generates various puzzles in our philosophical understanding of pain. This is a short encyclopedia entry surveying some of the major philosophical puzzles about pain.

Does the Ship of Theseus present a genuine puzzle about persistence due to conflicting intuitions based on “continuity of form” and “continuity of matter” pulling in opposite directions? Philosophers are divided. Some claim that it presents a genuine puzzle but disagree over whether there is a solution. Others claim that there is no puzzle at all since the case has an obvious solution. To assess these proposals, we conducted a cross-cultural study involving nearly 3,000 people across twenty-two countries, speaking eighteen (...) different languages. Our results speak against the proposal that there is no puzzle at all and against the proposal that there is a puzzle but one that has no solution. Our results suggest that there are two criteria—“continuity of form” and “continuity of matter”— that constitute our concept of persistence and these two criteria receive different weightings in settling matters concerning persistence. (shrink)

Here is an old philosophical puzzle. Take out a coin and look at it. It is a flat disk. Now tilt it so that you look at it on an angle. From an angle, there is some sense in which the tilted coin appears elliptical. But there is also a strong sense in which the tilted coin looks circular, like a flat disk. How can one object look both elliptical and circular at the same time? Thus, the puzzle of (...) the tilted coin. (shrink)

The purpose of this paper is to present and discuss a puzzle involving accommodation. The puzzle is based on three assumptions. The first assumption is that accommodation takes place after an utterance. The second assumption is that accommodation can make a difference to the truth-value of an utterance even if the utterance is not about the future. The third assumption is that something that takes place after an utterance cannot make a difference to the truth-value of the utterance unless the (...) utterance is about the future. Since these assumptions are jointly inconsistent, one of them must be false. The question is which one we ought to reject. The majority of the discussion is devoted to discussing each of the options, and the tentative conclusion is that the most plausible strategy is to reject the third thesis. That amounts to saying that something that takes place after an utterance can make a difference to the truth-value of the utterance even if the utterance is not about the future. (shrink)

The philosophy of science has produced numerous accounts of how scientific facts are generated, from very specific facilitators of belief, such as neo-Kantian constitutive principles, to global frameworks, such as Kuhnian paradigms. I consider a recent addition to this canon: van Fraassen’s notion of an epistemic stance—a collection of attitudes and policies governing the generation of factual beliefs—and his commitment to voluntarism in this context: the idea that contrary stances and sets of beliefs are rationally permissible. I argue that while (...) scientific inquiry inevitably favours a high degree of consensus in our choices of stance, there is no parallel constraint in the case of philosophical inquiry, such as that concerned with how scientific knowledge should be interpreted. This leads, in the latter case, to a fundamental and apparently irresolvable mystery at the heart of stance voluntarism, regarding the grounds for choosing basic epistemic stances. (shrink)