Is knowledge justified true belief? Most philosophers believe that the answer is clearly ‘no’, as demonstrated by Gettier cases. But Gettier cases don’t obviously refute the traditional view that knowledge is justified true belief (JTB). There are ways of resisting Gettier cases, at least one of which is partly successful. Nevertheless, when properly understood, Gettier cases point to a flaw in JTB, though it takes some work to appreciate just what it is. The nature of the flaw helps us better (...) understand the nature of knowledge and epistemic justification. I propose a crucial improvement to the traditional view, relying on an intuitive and independently plausible metaphysical distinction pertaining to the manifestation of intellectual powers, which supplements the traditional components of justification, truth and belief. (shrink)

Nearly all success is due to some mix of ability and luck. But some successes we attribute to the agent’s ability, whereas others we attribute to luck. To better understand the criteria distinguishing credit from luck, we conducted a series of four studies on knowledge attributions. Knowledge is an achievement that involves reaching the truth. But many factors affecting the truth are beyond our control and reaching the truth is often partly due to luck. Which sorts of luck are compatible (...) with knowledge? We find that knowledge attributions are highly sensitive to lucky events that change the explanation for why a belief is true. By contrast, knowledge attributions are surprisingly insensitive to lucky events that threaten but ultimately fail to change the explanation for why a belief is true. These results shed light on our concept of knowledge, help explain apparent inconsistencies in prior work on knowledge attributions, and constitute progress toward a general understanding of the relation between success and luck. (shrink)

Professional philosophers say it’s obvious that a Gettier subject does not know. But experimental philosophers and psychologists have argued that laypeople and non-Westerners view Gettier subjects very differently, based on experiments where laypeople tend to ascribe knowledge to Gettier subjects. I argue that when effectively probed, laypeople and non-Westerners unambiguously agree that Gettier subjects do not know.

When philosophers try to understand the nature of knowledge, they have to confront the Gettier problem. This problem, set out in Edmund Gettier's famous paper of 1963, has yet to be solved, and has challenged our best attempts to define what knowledge is. This volume offers an organised sequence of accessible and distinctive chapters explaining the history of debate surrounding Gettier's challenge, and where that debate should take us next. The chapters describe and evaluate a wide range of ideas about (...) knowledge that have been sparked by philosophical engagements with the Gettier problem, including such phenomena as fallibility, reasoning, evidence, reliability, truth-tracking, context, luck, intellectual virtue, wisdom, conceptual analysis, intuition, experimental philosophy, and explication. The result is an authoritative survey of fifty-plus years of epistemological research - along with provocative ideas for future research – into the nature of knowledge. (shrink)

Sometimes, ignorance is inexpressible. Lewis recognized this when he argued, in “Ramseyan Humility,” that we cannot know which property occupies which causal role. This peculiar state of ignorance arises in a number of other domains too, including ignorance about our position in space and the identities of individuals. In these cases, one does not know something, and yet one cannot give voice to one's ignorance in a certain way. But what does the ignorance in these cases consist in? This essay (...) argues that many standard models of ignorance cannot account for the phenomenon of inexpressible ignorance. It then develops an alternative model that does better, on which the ignorance consists in a failure to identify something by way of its nature or essence. (shrink)

It is argued that the two main accounts of ignorance in the contemporary literature—in the terms of the lack of knowledge and the lack of true belief—are lacking in key respects. A new way of thinking about ignorance is offered that can accommodate the motivations for both of the standard views, but which in the process also avoids the problems that afflict these proposals. In short, this new account of ignorance incorporates the idea that ignorance essentially involves not just the (...) absence of a certain epistemic good, but also an intellectual failing of inquiry. It is further contended that making sense of this normative dimension to ignorance requires one to situate one’s account of ignorance within a wider epistemic axiology. (shrink)

Edmund Gettier is Professor Emeritus at the University of Massachusetts, Amherst. This short piece, published in 1963, seemed to many decisively to refute an otherwise attractive analysis of knowledge. It stimulated a renewed effort, still ongoing, to clarify exactly what knowledge comprises.

Ignorance is trending. Politicians boast, "I'm not a scientist." Angry citizens object to a proposed state motto because it is in Latin, and "This is America, not Mexico or Latin America." Lack of experience, not expertise, becomes a credential. Fake news and repeated falsehoods are accepted and shape firm belief. Ignorance about American government and history is so alarming that the ideal of an informed citizenry now seems quaint. Conspiracy theories and false knowledge thrive. This may be the Information Age, (...) but we do not seem to be well informed. In this book, philosopher Daniel DeNicola explores ignorance -- its abundance, its endurance, and its consequences. (shrink)

Once treated as the absence of knowledge, ignorance today has become a highly influential topic in its own right, commanding growing attention across the natural and social sciences where a wide range of scholars have begun to explore the social life and political issues involved in the distribution and strategic use of not knowing. The field is growing fast and this handbook reflects this interdisciplinary field of study by drawing contributions from economics, sociology, history, philosophy, cultural studies, area studies, anthropology, (...) legal studies, feminist studies, and related fields in order to serve as a seminal guide to the political, legal and social uses of ignorance in social and political life. (shrink)

Michael J. Zimmerman offers a conceptual analysis of the moral ‘ought’ that focuses on moral decision-making under uncertainty. His central case, originally presented by Frank Jackson, concerns a doctor who must choose among three treatments for a minor ailment. Her evidence suggests that drug B will partially cure her patient, that one of either drug A or C would cure him completely, but that the other drug would kill him. Accepting the intuition that the doctor ought to choose drug B, (...) Zimmerman argues that moral obligation consists in performing the action that is ‘prospectively best,’ that is ‘that which, from the moral point of view, it is most reasonable for the agent to choose’ given the evidence available to her at the time.Zimmerman defends his Prospective View of moral obligation against two main competitors in the long, first chapter of the book. According to the Objective View, a person ought to choose what is, in fact, the best option. The doctor ought to give her patient whichever drug will actually cure him. The fact that the doctor cannot know whether this is drug …. (shrink)

This superbly crafted account of the notion of moral responsibility and of its relations to freedom, control, ignorance, negligence, attempts, omissions, compulsion, mental disorders, virtues and vices, desert, and punishment fills that gap. The treatment of character and luck is particularly sophisticated and well-argued.

In these challenging pages, Unger argues for the extreme skeptical view that, not only can nothing ever be known, but no one can ever have any reason at all for anything. A consequence of this is that we cannot ever have any emotions about anything: no one can ever be happy or sad about anything. Finally, in this reduction to absurdity of virtually all our supposed thought, he argues that no one can ever believe, or even say, that anything is (...) the case. (shrink)

This essay aims to clarify the value of developing systematic studies of ignorance as a component of any robust theory of knowledge. The author employs feminist efforts to recover and create knowledge of women's bodies in the contemporary women's health movement as a case study for cataloging different types of ignorance and shedding light on the nature of their production. She also helps us understand the ways resistance movements can be a helpful site for understanding how to identify, critique, and (...) transform ignorance. (shrink)

: Lay understanding and scientific accounts of female sexuality and orgasm provide a fertile site for demonstrating the importance of including epistemologies of ignorance within feminist epistemologies. Ignorance is not a simple lack. It is often constructed, maintained, and disseminated and is linked to issues of cognitive authority, doubt, trust, silencing, and uncertainty. Studying both feminist and nonfeminist understandings of female orgasm reveals practices that suppress or erase bodies of knowledge concerning women's sexual pleasures.

Lay understanding and scientific accounts of female sexuality and orgasm provide a fertile site for demonstrating the importance of including epistemologies of ignorance within feminist epistemologies. Ignorance is not a simple lack. It is often constructed, maintained, and disseminated and is linked to issues of cognitive authority, doubt, trust, silencing, and uncertainty. Studying both feminist and nonfeminist understandings of female orgasm reveals practices that suppress or erase bodies of knowledge concerning women's sexual pleasures.

What modal relation must a fact bear to a belief in order for this belief to constitute knowledge of that fact? Externalists have proposed various answers, including some that combine externalism with contextualism. We shall find that various forms of externalism share a modal conception of “sensitivity” open to serious objections. Fortunately, the undeniable intuitive attractiveness of this conception can be explained through an easily confused but far preferable notion of “safety.” The denouement of our reflections, finally, will be to (...) show how replacing sensitivity with safety makes it possible to defend plain Moorean common sense against the spurious advantages over it claimed by skeptical, tracking, relevant-alternative, and contextualist accounts. (shrink)

Ernest Sosa presents a new approach to the problems of knowledge and scepticism. He argues for two levels of knowledge, the animal and the reflective, each viewed as a distinctive human accomplishment. Sosa's virtue epistemology illuminates different varieties of scepticism, the nature and status of intuitions, and epistemic normativity.

Ernest Sosa's A Virtue Epistemology, Vol. I is arguably the single-most important monograph to be published in analytic epistemology in the last ten years. Sosa, the first in the field to employ the notion of intellectual virtue – in his ground-breaking ‘The Raft and the Pyramid’– is the leading proponent of reliabilist versions of virtue epistemology. In A Virtue Epistemology, he deftly defends an externalist account of animal knowledge as apt belief, argues for a distinction between animal and reflective knowledge, (...) contends that rational intuition is an intellectual virtue ; and offers responses to dream scepticism, the problem of the criterion and the value problem. Nearly all of these arguments are new, albeit consistent with Sosa's earlier work; that is, consistent with two notable exceptions. First, c ontra Sosa's ‘Replies’ in Ernest Sosa and His Critics, A Virtue Epistemology explicitly contends that safety is not required for animal knowledge. Second, unlike Sosa's Knowledge in Perspective, which arguably construes the intellectual virtues as merely instrumentally valuable, A Virtue Epistemology explicitly contends that the intellectual virtues are instrumentally and constitutively valuable. Best read in conjunction with the above monographs and Epistemic Justification, A Virtue Epistemology is mandatory reading for epistemologists and graduate students in the field. It will rightly set the standard for debates in analytic epistemology for years to come.I will summarize and raise objections to two key conclusions that are unique to A Virtue Epistemology: the ‘kaleidoscope-perceiver’ has animal knowledge but lacks reflective knowledge; unlike the k-perceiver, the ordinary perceiver has reflective knowledge. My objections …. (shrink)

In this paper, I respond to Pierre Le Morvan’s critique of my thesis that ignorance is lack of true belief rather than absence of knowledge. I argue that the distinction between dispositional and non-dispositional accounts of belief, as I made it in a previous paper, is correct as it stands. Also, I criticize the viability and the importance of Le Morvan’s distinction between propositional and factive ignorance. Finally, I provide two arguments in favor of the thesis that ignorance is lack (...) of true belief rather than absence of knowledge. (shrink)

A certain construal of the Gettier problem is offered, according to which this problem concerns the task of identifying the anti-luck condition on knowledge. A methodology for approaching this construal of the Gettier problem—anti-luck epistemology—is set out, and the utility of such a methodology is demonstrated. It is argued that a range of superficially distinct cases which are meant to pose problems for anti-luck epistemology are in fact related in significant ways. It is claimed that with these cases properly understood, (...) anti-luck epistemology is able to offer a suitable diagnosis of them which doesn’t threaten the necessity of the anti-luck condition for knowledge. (shrink)

In this paper, I provide a defence of the New View, on which ignorance is lack of true belief rather than lack of knowledge. Pierre Le Morvan has argued that the New View is untenable, partly because it fails to take into account the distinction between propositional and factive ignorance. I argue that propositional ignorance is just a subspecies of factive ignorance and that all the work that needs to be done can be done by using the concept of factive (...) ignorance. I also defend two arguments of mine in favour of the New View against Le Morvan’s criticisms. As to the Linguistic Argument, I point out that the intuitions of the adherent of the New View about cases of true belief that fall short of knowledge are really intuitions about factive rather than propositional ignorance. As to the Excuse Argument, I argue that true belief is exculpatorily relevant: a true belief in a proposition p , where disbelief that p or suspension on p would provide at least a partial excuse, is relevant in that it renders one blameworthy for one’s action, unless further excuses hold. Finally, I reply to two closely related objections that might be levelled against the New View, namely that it seems false that one can reduce one’s ignorance by arbitrarily believing as many propositions as possible and that it seems false that an intellectually conscientious and critical person is more ignorant than an intellectually sloppy and credulous person just because the latter has more true beliefs. (shrink)

This article offers an analysis of ignorance. After a couple of preliminary remarks, I endeavor to show that, contrary to what one might expect and to what nearly all philosophers assume, being ignorant is not equivalent to failing to know, at least not on one of the stronger senses of knowledge. Subsequently, I offer two definitions of ignorance and argue that one’s definition of ignorance crucially depends on one’s account of belief. Finally, I illustrate the relevance of my analysis by (...) paying attention to four philosophical problems in which ignorance plays a crucial role. (shrink)

The philosophical literature displays a lively debate on the conditions under which ignorance excuses. In this paper, I formulate and defend an answer to two questions that have not yet been discussed in the literature on exculpatory ignorance. First, which kinds of propositional attitudes that count as ignorance provide an excuse? I argue that we need to consider four options here: having a false belief, suspending judgement on a true proposition, being deeply ignorant of a truth, and having a true (...) belief that falls short of knowledge. Second, ignorance of which propositions counts as an excuse? I discuss four candidates: ignorance of one’s obligation, ignorance that one is able to meet that obligation, ignorance of how to meet that obligation, and lack of foresight regarding that obligation. I argue that we can give a satisfactory account of exculpatory ignorance only if we pay attention to these two neglected issues. (shrink)

Suppose that knowledge and ignorance are complements in the sense of being mutually exclusive: for person S and fact p, either S knows that p or is ignorant that p. Understood in this way, ignorance amounts to a lack or absence of knowledge: S is ignorant that p if and only if it is not the case that S knows that p. Let us call the thesis that knowledge and ignorance are opposites the “Complement Thesis”. In this article, I discuss (...) its deployment in an ingenious new argument advanced by Alvin Goldman and Erik Olsson (2009) which, if sound, establishes that there is a kind of knowledge that amounts to nothing more than true belief. I rebut their argument and in doing so delineate some important epistemological lessons brought to light by the contrast between ignorance and knowledge. (shrink)

Willful ignorance is an important concept in criminal law and jurisprudence, though it has not received much discussion in philosophy. When it is mentioned, however, it is regularly assumed to be a kind of self-deception. In this article I will argue that self-deception and willful ignorance are distinct psychological kinds. First, some examples of willful ignorance are presented and discussed, and an analysis of the phenomenon is developed. Then it is shown that current theories of self-deception give no support to (...) the idea that willful ignorance is a kind of self-deception. Afterwards an independent argument is adduced for excluding willful ignorance from this category. The crucial differences between the two phenomena are explored, as are the reasons why they are so easily conflated. (shrink)

It is a commonly-held belief that ignorance excuses. But what of moral ignorance? Is a person blameless who acts from “false” moral principles? In this paper I shall try to show that such a person is blameworthy. I shall produce an argument that connects the acceptance of moral principles with character, character with moral responsibility, and moral responsibility with the justifiability of blame.

Rik Peels has forcefully argued that, contrary to what is widely held, ignorance is not equivalent to the lack or absence of knowledge. In doing so, he has argued against the Standard View of Ignorance according to which they are equivalent, and argued for what he calls “the New View” according to which ignorance is equivalent (merely) to the lack or absence of true belief. In this paper, I defend the Standard View against Peels’s latest case for the New View.

An ingenious argument – we may call it the Argument from Excuse – purports to show that the Standard View of Ignorance is false and the New View of Ignorance is true. On the former, ignorance is lack of knowledge; on the latter, ignorance is lack of true belief. I defend the Standard View by arguing that the Argument from Excuse is unsound. I also argue that an implication of my case is that Factual Ignorance Thesis (FIT) is false. According (...) to FIT, whenever an agent A acts from factual ignorance, A is morally blameworthy (culpable) for the act only if A is morally blameworthy (culpable) for the ignorance from which A acts. (shrink)

Rik Peels has ingeniously argued that ignorance is not equivalent to the lack or absence of knowledge. In this response, I defend the Standard View of Ignorance according to which they are equivalent. In the course of doing so, some important lessons will emerge concerning the nature of ignorance and its relationship to knowledge.

Rik Peels has once again forcefully argued that ignorance is not equivalent to the lack or absence of knowledge. In doing so, he endeavors to refute the Standard View of Ignorance according to which they are equivalent, and to advance what he calls the “New View” according to which ignorance is equivalent (merely) to the lack or absence of true belief. I defend the Standard View against his new attempted refutation.

Deploying distinctions between ignorance of \ and ignorance that \ , and between knowledge of \ and knowledge that \ , I address a question that has hitherto received little attention, namely: what is it to have knowledge of propositions? I then provide a taxonomy of ontological conceptions of the nature of propositions, and explore several of their interesting epistemological implications.

Suppose that knowledge and ignorance are complements in the sense of being mutually exclusive: for person S and fact p, either S knows that p or is ignorant that p. Understood in this way, ignorance amounts to a lack or absence of knowledge: S is ignorant that p if and only if it is not the case that S knows that p. Let us call the thesis that knowledge and ignorance are opposites the “Complement Thesis”. In this article, I discuss (...) its deployment in an ingenious new argument advanced by Alvin Goldman and Erik Olsson (2009) which, if sound, establishes that there is a kind of knowledge that amounts to nothing more than true belief. I rebut their argument and in doing so delineate some important epistemological lessons brought to light by the contrast between ignorance and knowledge. (shrink)

I argue that the Standard View of ignorance is at odds with the claim that knowledge entails truth. In particular, if knowledge entails truth then we cannot explain away some apparent absurdities that arise from the Standard View of ignorance. I then discuss a modified version of the Standard View, which simply adds a truth requirement to the original Standard View. I show that the two main arguments for the original Standard View fail to support this modified view.

Skeptical puzzles and arguments often employ knowledge-closure principles . Epistemologists widely believe that an adequate reply to the skeptic should explain why her reasoning is appealing albeit misleading; but it’s unclear what would explain the appeal of the skeptic’s closure principle, if not for its truth. In this paper, I aim to challenge the widespread commitment to knowledge-closure. But I proceed by first examining a new puzzle about failing to know—what I call the New Ignorance Puzzle . This puzzle resembles (...) to the Old Ignorance Puzzle , although it does not involve a closure principle. It instead centers on the standard view of ignorance, a highly intuitive principle stating that ignorance is merely a failure to know. In Sects. 2 and 3, I argue that the best way to solve the New Ignorance Puzzle is to reject the standard view of ignorance and to explain away its appeal via conversational implicature. I then use this solution to the New Ignorance Puzzle as a way of explaining why knowledge-closure principles would seem true, and why abominable conjunctions would seem abominable, even if such principles were false . The upshot is a new way of explaining why the skeptic’s reasoning is appealing albeit misleading. (shrink)

Recent years have seen a surge in publications about the epistemology of ignorance. In this article, I examine the proliferation of the concept ignorance that has come with the increased interest in the topic. I identify three conceptions of ignorance in the current literature: (1) ignorance as lack of knowledge/true belief, (2) ignorance as actively upheld false outlooks and (3) ignorance as substantive epistemic practice. These different conceptions of ignorance are as of yet unacknowledged but are bound to impede epistemology (...) of ignorance and, therefore, need to be uncovered. After discussing three unsuccessful ways of dealing with these varying conceptions, I put forward an integrated conception of ignorance that is more adequate for serving as the foundation of epistemology of ignorance. Introducing an alternative conception of ignorance provides us with a foundation for both epistemological and more broadly philosophical work on ignorance. (shrink)

Karl Marx and Sigmund Freud provided powerful accounts of systematic interested ignorance. Fifty years ago, Anglo-American philosophies of science stigmatized Marx's and Freud's analyses as models of irrationality. They remain disvalued today, at a time when virtually all other humanities and social science disciplines have returned to extract valuable insights from them. Here the argument is that there are reasons distinctive to philosophy why such theories were especially disvalued then and why they remain so today. However, there are even better (...) reasons today for philosophy to break from this history and find more fruitful ways to engage with systematic interested ignorance. (shrink)

Karl Marx and Sigmund Freud provided powerful accounts of systematic interested ignorance. Fifty years ago, Anglo-American philosophies of science stigmatized Marx's and Freud's analyses as models of irrationality. They remain disvalued today, at a time when virtually all other humanities and social science disciplines have returned to extract valuable insights from them. Here the argument is that there are reasons distinctive to philosophy why such theories were especially disvalued then and why they remain so today. However, there are even better (...) reasons today for philosophy to break from this history and find more fruitful ways to engage with systematic interested ignorance. (shrink)

This paper takes on several distinct but related tasks. First, I present and discuss what I will call the “Ignorance Thesis,” which states that whenever an agent acts from ignorance, whether factual or moral, she is culpable for the act only if she is culpable for the ignorance from which she acts. Second, I offer a counterexample to the Ignorance Thesis, an example that applies most directly to the part I call the “Moral Ignorance Thesis.” Third, I argue for a (...) principle—Don’t Know, Don’t Kill—that supports the view that the purported counterexample actually is a counterexample. Finally, I suggest that my arguments in this direction can supply a novel sort of argument against many instances of killing and eating certain sorts of animals. (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)