When we affirm that someone knows something, we are making a value judgment of sorts - we are claiming that there is something superior about that person's opinion, or their evidence, or perhaps about them. A central task of the theory of knowledge is to investigate the sort of evaluation at issue. This is the first book to make 'epistemic normativity,' or the normative dimension of knowledge and knowledge ascriptions, its central focus. John Greco argues that knowledge is a kind (...) of achievement, as opposed to mere lucky success. This locates knowledge within a broader, familiar normative domain. By reflecting on our thinking and practices in this domain, it is argued, we gain insight into what knowledge is and what kind of value it has for us. (shrink)

The paper begins by reviewing two problems for fallibilism: the lottery problem, or the problem of explaining why fallible evidence, though otherwise excellent, is not enough to know that one will lose the lottery, and Gettier problems. It is then argued that both problems can be resolved if we note an important illocutionary force of knowledge attributions: namely, that when we attribute knowledge to someone we mean to give the person credit for getting things right. Alternatively, to say that a (...) person knows is to say that she got things right due to her own abilities, efforts and actions, rather than due to dumb luck, or blind chance, or something else. (shrink)

Contemporary virtue epistemology (hereafter ‘VE’) is a diverse collection of approaches to epistemology. At least two central tendencies are discernible among the approaches. First, they view epistemology as a normative discipline. Second, they view intellectual agents and communities as the primary focus of epistemic evaluation, with a focus on the intellectual virtues and vices embodied in and expressed by these agents and communities. -/- This entry introduces many of the most important results of the contemporary VE research program. These include (...) novel attempts to resolve longstanding disputes, solve perennial problems, grapple with novel challenges, and expand epistemology’s horizons. In the process, it reveals the diversity within VE. Beyond sharing the two unifying commitments mentioned above, its practitioners diverge over the nature of intellectual virtues, which questions to ask, and which methods to use. -/- It will be helpful to note some terminology before proceeding. First, we use ‘cognitive’, ‘epistemic’ and ‘intellectual’ synonymously. Second, we often use ‘normative’ broadly to include not only norms and rules, but also duties and values. Finally, ‘practitioners’ names contemporary virtue epistemologists. (shrink)

This book, first published in 2000, is about the nature of skeptical arguments and their role in philosophical inquiry. John Greco delineates three main theses: that a number of historically prominent skeptical arguments make no obvious mistake, and therefore cannot be easily dismissed; that the analysis of skeptical arguments is philosophically useful and important, and should therefore have a central place in the methodology of philosophy; and that taking skeptical arguments seriously requires us to adopt an externalist, reliabilist epistemology. Greco (...) argues that the importance of skeptical arguments is methodological. It is further argued that taking skeptical arguments seriously requires us to adopt a version of 'virtue epistemology', or a theory of knowledge that makes intellectual virtue central in the analysis of knowledge. The above methodology has consequences for moral and religious epistemology; in particular, a theory of moral perception is defended. (shrink)

Section 1 articulates a genus-species claim: that knowledge is a kind of success from ability. Equivalently: In cases of knowledge, S’s success in believing the truth is attributable to S’s ability. That idea is then applied to questions about the nature and value of knowledge. Section 2 asks what it would take to turn the genus-species claim into a proper theory of knowledge; that is, into informative, necessary and sufficient conditions. That question is raised in the context of an important (...) line of objection against even the genus-species claim; namely, that there is no way to understand the attribution relation so that it does all the work that it is supposed to do. Section 3 reviews several extant proposals for understanding the attribution relation, and argues that none of them are adequate for answering the objection. Section 4 proposes a different way of understanding the relation, and shows how the resulting view does resolve the objection. Section 5 completes the new account by proposing a way to understand intellectual abilities. Section 6 briefly addresses Barn Façade cases and lottery propositions. Section 7 briefly addresses a question about the scope of knowledge; in particular, it shows how the new view allows a neo-Moorean response to skepticism. (shrink)

How do we transmit or distribute knowledge, as distinct from generating or producing it? In this book John Greco examines the interpersonal relations and social structures which enable and inhibit the sharing of knowledge within and across epistemic communities. Drawing on resources from moral theory, the philosophy of language, action theory and the cognitive sciences, he considers the role of interpersonal trust in transmitting knowledge, and argues that sharing knowledge involves a kind of shared agency similar to giving a gift (...) or passing a ball. He also explains why transmitting knowledge is easy in some social contexts, such as those involving friendship or caregiving, but impossible in contexts characterized by suspicion and competition rather than by trust and cooperation. His book explores phenomena that have been undertheorized by traditional epistemology, and throws new light on existing problems in social epistemology and the epistemology of testimony. (shrink)

Virtue epistemology is a diverse and flourishing field, one of the most exciting developments in epistemology to emerge over the last three decades. Virtue epistemology begins with the premise that epistemology is a normative discipline and, accordingly, a central task of epistemology is to explain the sort of normativity that knowledge, justified belief, and the like involve. A second premise is that a focus on the intellectual virtues is essential to carrying out this central task. This collection offers some of (...) the most influential and agenda-setting work at the heart of virtue epistemology's research program. Taken together, they will equip the reader to enter the ongoing discussion and debate in the field. The selections range from seminal contributions by Ernest Sosa, who introduced the notion of intellectual virtue into the contemporary literature, to a study of "epistemic justice" that draws on _To Kill a Mockingbird_ and The Talented Mr. Ripley. The readings include overviews of the field that also serve to advance the discussion; investigations of the nature of knowledge; reflections on the value of knowledge; examinations of credit and luck; and explorations of future directions for research. The hardcover edition does not include a dust jacket. (shrink)

Section 1 articulates a genus‐species claim: that knowledge is a kind of success from ability. Equivalently: In cases of knowledge, S’s success in believing the truth is attributable to S’s ability. That idea is then applied to questions about the nature and value of knowledge. Section 2 asks what it would take to turn the genus‐species claim into a proper theory of knowledge; that is, into informative, necessary and sufficient conditions. That question is raised in the context of an important (...) line of objection against even the genus‐species claim; namely, that there is no way to understand the attribution relation so that it does all the work that it is supposed to do. Section 3 reviews several extant proposals for understanding the attribution relation, and argues that none of them are adequate for answering the objection. Section 4 proposes a different way of understanding the relation, and shows how the resulting view does resolve the objection. Section 5 completes the new account by proposing a way to understand intellectual abilities. Section 6 briefly addresses Barn Façade cases and lottery propositions. Section 7 briefly addresses a question about the scope of knowledge; in particular, it shows how the new view allows a neo‐Moorean response to skepticism. (shrink)

The claim that knowledge is a kind of success from ability has great theoretical power: it explains the nature of epistemic normativity, why knowledge is incompatible with luck, and why knowledge is more valuable than mere true belief. This paper addresses objections to the view by wedding it with two additional ideas: that intellectual abilities display a certain structure, and that the concept of knowledge functions to flag good information, and good sources of information, for use in practical reasoning.

This paper reviews two skeptical arguments and argues that a reliabilist framework is necessary to avoid them. The paper also argues that agent reliabilism, which makes the knower the seat of reliability, is the most plausible version of reliabilism.

"Powers and Capacities in Philosophy" is designed to stake out an emerging, discipline-spanning neo-Aristotelian framework grounded in realism about causal powers. The volume brings together for the first time original essays by leading philosophers working on powers in relation to metaphysics, philosophy of natural and social science, philosophy of mind and action, epistemology, ethics and social and political philosophy. In each area, the concern is to show how a commitment to real causal powers affects discussion at the level in question. (...) In metaphysics, for example, realism about powers is now recognized as providing an alternative to orthodox accounts of causation, modality, properties and laws. Dispositional realist philosophers of science, meanwhile, argue that a powers ontology allows for a proper account of the nature of scientific explanation. In the philosophy of mind there is the suggestion that agency is best understood in terms of the distinctive powers of human beings. Those who take virtue theoretic approaches in epistemology and ethics have long been interested in the powers that allow for knowledge and/or moral excellence. In social and political philosophy, finally, powers theorists are interested in the powers of sociological phenomena such as collectivities, institutions, roles and/or social relations, but also in the conditions of possibility for the cultivation of the powers of individuals. The book will be of interest to philosophers working in any of these areas, as well as to historians of philosophy, political theorists and critical realists. (shrink)

This paper argues that knowledge is an instance of a more general and familiar normative kind—that of success through ability (or success through excellence, or success through virtue). This thesis is developed in the context of three themes prominent in the recent literature: that knowledge attributions are somehow context sensitive; that knowledge is intimately related to practical reasoning; and that one purpose of the concept of knowledge is to flag good sources of information. Wedding these themes to the proposed account (...) helps to explain a wide range of standard Gettier problems. It also helps to explain barn façade cases, which require a different kind of treatment. (shrink)

This paper addresses two worries that might be raised about contextualism in epistemology and that carry over to its moral analogues: that contextualism robs epistemology (and moral theory) of a proper subject-matter, and that contextualism robs knowledge claims (and moral claims) of their objectivity. Two theses are defended: (1) that these worries are appropriately directed at interestdependent theories in general rather than at contextualism in particular, and (2) that the two worries are over-stated in any case. Finally, the paper offers (...) some considerations in favour of attributor contextualism over 'subject-sensitive invariantism', both in epistemology and in moral theory. But here we note an interesting result: the very considerations that support contextualism as a semantic thesis, threaten to rob that position of its anti-sceptical force. (shrink)

When we say that someone knows something we are making a value judgment—we are saying that there is something intellectually good or right about the person’s belief, or about the way she believes it, or perhaps about her. We are saying, for example, that her belief is intellectually better than someone else’s mere opinion. Notice that we might make this sort of value judgment even if the two persons agree. Suppose that two people agree that the earth is the third (...) planet from the sun. Nevertheless, we might think that one person knows this while the other person merely believes it. If so, we are making a value judgment—we are saying that there is something intellectually better going on in the case of knowledge. Another way to put the point is to say that knowledge is a normative notion. There is something normatively better about the case of knowledge, as opposed to the case of mere opinion, or even the case of true opinion. Finally, saying that someone knows something is not the only sort of value judgment we can make about her belief. Even if we agree that some belief falls short of knowledge, we might nevertheless judge that it is justified, or rational, or reasonable, or responsible. In each such case, we are saying that there is something normatively better about the case in question, as opposed to the case of mere opinion, or even the case of true opinion. (shrink)

Part One reviews some recent history of epistemology, focusing on ways in which the intellectual virtues have been invoked to solve specific epistemological problems. This part gives a sense of the contemporary landscape that has emerged and clarifies some of the disagreements among those who invoke the virtues in epistemology. Part Two explores some problems about knowledge in greater detail, and defends a externalist approach in virtue epistemology.

Written by an international assembly of leading philosophers, this volume includes seventeen newly-commissioned full-length survey articles on the central topics of epistemology.

In recent years, virtue epistemology has won the attention of a wide range of philosophers. A developed form of the position has been expounded forcefully by Ernest Sosa and represents the most plausible version of reliabilism to date. Through the person of Alvin Plantinga, virtue epistemology has taken philosophy of religion by storm, evoking objections and defenses in a wide variety of journals and volumes. Historically, virtue epistemology has its roots in the work of Thomas Reid, and the explosion of (...) Reid scholarship in the last few years is perhaps both a cause and an effect of recent interest in the position.In this paper I want to examine the virtues and vices of virtue epistemology. My conclusion will be that the position is correct, when qualified appropriately. The central claim of virtue epistemology is that, Gettier problems aside, knowledge is true belief which results from a cognitive virtue. In section one I will clarify this claim with some brief remarks about the nature of virtues in general, and cognitive virtues in particular. In section two I will consider two objections to the theory of knowledge which results. In section three of the paper I will argue that virtue epistemology can be qualified so as to avoid the objections raised in section two. Finally, I will argue that the amendments which solve the objections of section two also allow us to solve a version of the dreaded generality problem. (shrink)

Almost everyone believes that testimony can transmit knowledge from speaker to hearer. What some philosophers mean by this is ordinary and pedestrian-- they mean only that, in at least some cases, a speaker S knows that p, S testifies that p to a hearer H, and H comes to know that p as a result of believing S's testimony. There is disagreement about how this occurs, but that it does occur is sufficient for the transmission of knowledge in the intended (...) sense. On this understanding of transmission, the natural questions are these: (1) What conditions, in addition to speaker knowledge and speaker testimony, are sufficient for the hearer to gain testimonial knowledge?; and (2) Is speaker knowledge always necessary for testimonial knowledge? That is: Is all testimonial knowledge transmitted knowledge? (shrink)

The second major thesis of the book follows closely on the first: that the analysis of skeptical arguments is philosophically useful and important, and should therefore have a central role in the methodology of philosophy, and especially in the methodology of epistemology. A close analysis of skeptical arguments highlights our pre-theoretically plausible, but ultimately mistaken, assumptions about the nature of knowledge and evidence. Skeptical arguments are powerful just because their assumptions are so plausible pre-theoretically. But the arguments show us where (...) those assumptions lead, and thereby force us to rethink those assumptions. On this view, skeptical arguments constitute theoretical problems rather than practical problems. There is no “practical” or “existential” problem of skepticism. Rather, skeptical arguments show us that we need to rethink our assumptions about knowledge and evidence, and replace them with something better. (shrink)

Epistemic Evaluation aims to explore and apply a particular methodology in epistemology. The methodology is to consider the point or purpose of our epistemic evaluations, and to pursue epistemological theory in light of such matters. Call this purposeful epistemology. The idea is that considerations about the point and purpose of epistemic evaluation might fruitfully constrain epistemological theory and yield insights for epistemological reflection. Several contributions to this volume explicitly address this general methodology, or some version of it. Others focus on (...) advancing some application of the methodology rather than on theorizing about it. The papers go on to explore the idea that purposes allow one to understand the conceptual demands on knowing, examine how purposeful epistemology might shed light on the debate between internalist and externalist epistemologies, and further develop the idea of purposeful epistemology. (shrink)

I take issue with two claims that Duncan Pritchard makes in his recent book, "Epistemic Luck". The first concerns his safety-based response to the lottery problem; the second his account of the relationship between safety and intellectual virtue.

Moore's 'Proof of an External World' has evoked a variety of responses from philosophers, including bafflement, indignation and sympathetic reconstruction. I argue that Moore should be understood as following Thomas Reid on a variety of points, both epistemological and methodological. Moreover, Moore and Reid are exactly right on all of these points. Hence what I present is a defence of Moore's 'Proof', as well as an interpretation. Finally, I argue that the Reid-Moore position is useful for resolving an issue that (...) has recently received attention in epistemology, namely, how is it that one knows that one is not a brain in a vat? (shrink)

I defend two theses here. First, I argue that at least many of the commitments that Wittgenstein identifies as “hinge commitments” are plausibly what cognitive psychology and artificial intelligence call “procedural knowledge.” Procedural knowledge can be implemented in cognitive systems in a variety of ways, and these modes of implementation, I argue, predict several properties of Wittgensteinian hinge commitments, including their functional profile, as well as other of their characteristic features. Second, I argue that thinking of hinge commitments as a (...) kind of procedural knowledge allows a unified virtue-theoretic treatment of the generation of knowledge, the transmission of knowledge, and Wittgensteinian “hinge knowledge.” This last thesis is noteworthy, in that Wittgenstein and his defenders have so far failed to offer any unified epistemology of hinge commitments and the knowledge that such commitments are supposed to make possible. (shrink)

In ”Virtues in Epistemology,” John Greco presents and evaluates two main notions of intellectual virtue. The first concerns Ernest Sosa's development of this concept as a disposition to grasp truth and avoid falsehood. Greco contrasts this with moral models of intellectual virtue that include a motivational component in their definition, namely a desire for truth. Instead, Greco argues that a minimalist reliabilist account of intellectual virtue “in which the virtues are conceived as reliable cognitive abilities or powers,” can be illuminating (...) in an account of knowledge. He sets out to support this on the grounds that his approach to intellectual virtue can adequately address three major problems on the theory of knowledge: Humean skepticism, the Gettier problem, and the problem of showing that knowledge is more valuable than mere true belief. (shrink)

This paper responds to Sven Bernecker’s argument that agent reliabilism cannot accommodate internalist intuitions about clarvoyance cases. In section 1 we clarify a version of agent reliabilism and Bernecker’s objections against it. In section 2 we say more about how the notion of cognitive integration helps to adjudicate clairvoyance cases and other proposed counterexamples to reliabilism. The central idea is that cognitive integration underwrites a kind of belief ownership, which in turn underwrites the sort of responsibility for belief required for (...) subjective justification. In section 3 we say more about what cognitive integration amounts to, drawing on some recent accounts of desire ownership from the literature on autonomy and moral responsibility. (shrink)

The first handbook on the topic of religious epistemology introduces and discusses topics fundamental to the epistemology of religious belief.

In section one the deontological (or responsibilist) conception of justification is discussed and explained. In section two, arguments are put forward in order to derive the most plausible version of perspectival internalism, or the position that epistemic justification is a function of factors internal to the believer's cognitive perspective. The two most common considerations put forward in favor of perspectival internalism are discussed. These are the responsibilist conception of justification, and the intuition that two believers with like beliefs and experiences (...) are equally justified in their like beliefs. In section three it is argued that perspectival internalism is false, and that in fact the position is not supported by a responsibilist conception of justification. Section four explicates two other forms of internalism, which are rejected for reasons similar to those presented against perspectival internalism. In section five, an internalist theory of justification is defended which is supported by a responsibilist conception of justification. Roughly stated, the position is that justified belief is belief which arises from the use of correct rules of reasoning. The idea of correctness is explicated, and the position is distinguished from others which are similar to it. (shrink)

Recent interest in the epistemology of testimony can be traced to C. A. J. Coady's Testimony: A Philosophical Study (1992) and then a collection of papers edited by Bimal Krishna Matilal and Arindam Chakrabarti, Knowing from Words (1994). These two volumes framed several issues in the epistemology of testimony and largely set the agenda for work in that area over the next two decades. -/- One major issue in this literature is whether testimonial knowledge can be "reduced" to some other (...) kind of knowledge: Is testimonial knowledge sui generis, requiring its own distinctive treatment, or is testimonial knowledge merely an instance of, for example, inductive knowledge, requiring no special epistemology over and above that required for inductive knowledge in general? One way that testimonial knowledge might be special is that it involves social elements that make it distinctive. This possibility raises further issues that have been prominent in the literature: In what ways is testimonial knowledge a social phenomenon, and what are the consequences of this for the epistemology of testimony and for epistemology more generally? (shrink)

In the history of philosophical thought, few themes loom as large as skepticism. Skepticism has been the most visible and important part of debates about knowledge. Skepticism at its most basic questions our cognitive achievements, challenges our ability to obtain reliable knowledge; casting doubt on our attempts to seek and understand the truth about everything from ethics, to other minds, religious belief, and even the underlying structure of matter and reality. Since Descartes, the defense of knowledge against skepticism has been (...) one of the primary tasks not just of epistemology but philosophy itself. The Oxford Handbook of Skepticism features twenty-six newly commissioned chapters by top figures in the field. Part One contains articles explaining important kinds of skeptical reasoning. Part Two focuses on responses to skeptical arguments. Part Three concentrates on important contemporary issues revolving around skepticism. As the first volume of its kind, the articles make significant contributions to the debate on skepticism. (shrink)

Almost everyone will grant that knowledge is often transmitted through testimony. Indeed, to deny this would be to accept a broad-ranging skepticism. Here is a problem: Knowledge seems to be transmitted right along side lots of garbage. That is, besides transmitting genuine knowledge, we manage to transmit lots of beliefs that are irrational, superstitious, self-deceiving, and flat out false. So how is that possible? How is it that the very same channels manage to transmit both knowledge and garbage together? Call (...) this “the garbage problem”. Part One of the paper explicates the problem in more detail and argues that the problem seems unsolvable by some familiar approaches to testimonial knowledge. Part Two presents and begins to defend a solution. The general idea is to treat the garbage problem as a generality problem. (shrink)

Part One of the paper argues against evidentialism and individualism in religiousepistemology, and in favor of a “social turn” in the field. The idea here is that humanbelief in general, and religious belief in particular, is largely characterized by epistemicdependence on other persons. An adequate epistemology, it is agued, ought to recognizeand account for social epistemic dependence.Part Two considers a problem that becomes salient when we make such a turn. Inshort, how are we to understand the transmission of knowledge and (...) rational faith in areligious tradition? The problem arises because, by all accounts, even the best traditionstransmit superstitions, self-serving prejudices, and other things that are down right falseon any reasonable view. So how is it that these same traditions can also transmit rationalfaith and even knowledge by means of the very same channels, for example channels ofreligious authority and religious teaching?Part Three offers a tentative solution to this problem. (shrink)

This chapter reviews a number of related problems in the epistemology of testimony, and suggests some dilemmas for any theory of knowledge that tries to solve them. Here a common theme emerges: It can seem that any theory must make testimonial knowledge either too hard or too easy, and that therefore no adequate account of testimonial knowledge is possible. The chapter then puts forward a proposal for making progress. Specifically, an important function of the concept of knowledge is to govern (...) the acquisition and distribution of quality information within an epistemic community. Testimonial exchanges paradigmatically serve in the distribution role, but sometimes serve in the acquisition role. The resulting position, it is argued, explains why testimonial knowledge is sometimes easy to get, and sometimes much harder. (shrink)

A central theme in social epistemology is that there are important and underappreciated phenomena involving social epistemic dependence—that is, epistemic dependence on other persons and on features of the broader social environment. Epistemologies that are inconsistent with this kind of dependence are labeled “individualist” and epistemologies that accommodate it are labeled “anti-individualist.” But how should the relevant notion of social epistemic dependence be understood? One important criterion for an adequate account is that it plausibly sorts epistemologies into the “individualist” and (...) “anti-individualist” categories. For example, standard reductionism about testimonial justification and knowledge should count as individualist, and many trust theories should count as anti-individualist. This paper argues that several accounts of social epistemic dependence in the literature fail to pass this simple sorting test. An alternative account that does is proposed. (shrink)

A number of contemporary philosophers endorse a Pyrrhonian theme: that one has knowledge only if one knows or understands that one’s beliefs are reliably formed. Otherwise, one is like a man who grasps gold in the dark: such a man is successful, but his success is a matter of luck, and so not creditable to him. It is argued that the skeptical problem and the problem of moral luck share a common structure and a common solution. Specifically, a virtue-theoretic approach (...) helps us to understand important relations among luck, success and credit for success. It is argued that knowledge is an instance of success through virtue, and that, in general, success through virtue is creditable to the virtuous agent. (shrink)

This essay defends virtue reliabilism against a line of argument put forward by Duncan Pritchard. In the process, it discusses (1) the motivations for virtue reliabilism, (2) some analogies between epistemic virtue and moral virtue, and (3) the relation between virtue (epistemic and otherwise) and luck (epistemic and otherwise). It argues that considerations about virtue and luck suggest a solution to Gettier problems from the perspective of a virtue theory.

This paper replies to various concerns raised in a symposium on Putting Skeptics in Their Place: The Nature of Skeptical Arguments and Their Role in Philosophical Inquiry.

What is the relationship between virtue and safety? This paper argues that Sosa’s positions in A Virtue Epistemology and in Judgment and Agency regarding this question are, despite appearances to the contrary, in fact consistent. Moreover, Sosa’s position there is well motivated—his Virtue Epistemology explains why knowledge should require apt belief, and why aptness should imply safety. Finally, the paper shows how two kinds of safety are importantly related to Sosa’s response to the Pyrrhonian Problematic. Specifically, reflections on the modal (...) profiles of first-order and second-order safety allow us to answer two prominent objections to Sosa’s position. (shrink)

Sven Bernecker has raised questions about how agent reliabilism should adjudicate clairvoyance cases.1 Bernecker’s charge is that the view cannot accommodate internalist intuitions about such cases while remaining psychologically plausible. His more specific charge is that invoking the notion of cognitive integration does not help. This paper responds to Bernecker’s charges. In section 1 we clarify a version of agent reliabilism and Bernecker’s objections against it. In section 2 we say more about how the notion of cognitive integration helps to (...) adjudicate clairvoyance cases and other proposed counterexamples to reliabilism. The central idea is that cognitive integration underwrites a kind of belief ownership, which in turn underwrites the sort of responsibility for belief required for subjective justification. In section 3 we say more about what cognitive integration amounts to, drawing on some recent accounts of desire ownership from the literature on autonomy and moral responsibility. (shrink)

Recent literature in epistemology has focused on the following argument for skepticism (SA): I know that I have two hands only if I know that I am not a handless brain in a vat. But I don't know I am not a handless brain in a vat. Therefore, I don't know that I have two hands. Part I of this article reviews two responses to skepticism that emerged in the 1980s and 1990s: sensitivity theories and attributor contextualism. Part II considers (...) the more recent ‘neo-Moorean’ response to skepticism and its development in ‘safety’ theories of knowledge. Part III argues that the skeptical argument set out in SA is not of central importance. Specifically, SA is parasitic on skeptical reasoning that is more powerful and more fundamental than that displayed by SA itself. Finally, Part IV reviews a Pyrrhonian argument for skepticism that is not well captured by SA, and considers a promising strategy for responding to it. (shrink)