Theories of Knowledge, Misc

La intuición es un tipo de conocimiento que consiste en captar de modo inmediato la esencia de las cosas y comprenderlas de forma directa sin llevar a cabo un proceso discursivo. Algunas filosofías rechazan este modo de conocer por ser falible, otros la enmarcan dentro de los fenómenos extrasensoriales e incluso paranormales. En este trabajo se considera la intuición en Jacques Maritain, no en su aspecto de fenómeno sobrenatural, sino como una vía de aprehensión de la realidad adquirida por métodos (...) ordinarios de conocimiento que nos revelan aspectos a los que no podemos llegar de otra forma. (shrink)

We construct a machine that knows its own code, at the price of not knowing its own factivity.

In the present paper, we shall discuss the notion of prototype and show its benefits. First, we shall argue that the prototypes of common-sense concepts are necessary for making prompt and reliable categorisations and inferences. However, the features constituting the prototype of a particular concept are neither necessary nor sufficient conditions for determining category membership; in this sense, the prototype might lead to conclusions regarded as wrong from a theoretical perspective. That being said, the prototype remains essential to handling most (...) ordinary situations and helps us to perform important cognitive tasks. To exemplify this point, we shall focus on disease concepts. Our analysis concludes that the prototypical conception of disease is needed to make important inferences from a practical and clinical point of view. Moreover, it can still be compatible with a classical definition of disease, given in terms of necessary and sufficient conditions. In the first section, we shall compare the notion of stereotype, as it has been introduced in philosophy of language by Hilary Putnam, with the notion of prototype, as it has been developed in the cognitive sciences. In the second section, we shall discuss the general role of prototypical information in cognition and stress its centrality. In the third section, we shall apply our previous discussion to the specific case of medical concepts, before briefly summarising our conclusions in section four. (shrink)

Amidst the broad divergence in opinion of philosophers and scientists at understanding reality that has lent character to the historical epochs of the Philosophical enterprise, the crucial realization has always been, of the necessity of Epistemology in our entire program of making inquiry into ‘What Is’. This realization seems born out of the erstwhile problem of knowing. Epistemology, which investigates the nature, sources, limitations and validating of knowledge, offers a striking challenge here. Since we have no direct access to our (...) world around us, outside of the subjective experience offered us by our senses, we are handicapped at making comparisons of our beliefs with a concrete world, out there, or with elements of the world. Our statements about the world seem to stand alone, buffeted against the intimidating tide of possible contradicting circumstances. Our putative claims to knowledge, therefore, face the exigency of justification. Ayer, expressing the urgency of resolving this persisting lacuna, provides an alternative criterion of knowing, as ‘having the right to be sure’. Thus, it is this deep-seated concern that has evolved, over time, to become the primary thrust of the project of Epistemology, raising the controversy over which, of Epistemology or Metaphysics, is to be accorded the prime status of first philosophy. However, Aquinas is wise to build his epistemological premise on a firm metaphysical support, clarifying the needed development from being to knowledge. For, being has to first exist to constitute the object of perception, belief, and knowledge. Accordingly, our exposition of Aquinas’ epistemology will first take a cursory look at the theoretical and historical background to Aquinas’ Philosophy, before offering a general characterization of his theory of knowledge. Then, the paper will discuss his concept of sense perception as a basis for all knowing, followed closely by an analysis of cognition and Scientia. (shrink)

Given the evidence available today, we know that the later Middle Ages knew strong forms of idealism. However, Plato alone will not do to explain some of its features. Aristotle was the most important philosophical authority in the thirteenth and fourteenth centuries, but until now no one dared explore in his thought the roots of this idealism because of the dogma of realism surrounding him. I challenge this dogma, showing that the Stagirite contained in his thought the roots of idealist (...) aspects that will be developed, namely by Dietrich of Freiberg and Eckhart of Hochheim, into a fully idealist epistemology. (shrink)

A Review of John Greco's book Acheiving Knowledge. The critical points I make involve three claims Greco makes that represent common ground between the reliabilists (including agent reliabilists like himself) and the character epistemologists (which would include myself): I. Such virtues are often needed to make our cognitive abilities reliable (to turn mere faculties into excellences); II. Such virtues might be essentially involved in goods other than knowledge; III. Such virtues might be valuable in themselves.

The traditional tripartite and tetrapartite analyses describe the conceptual components of propositional knowledge from a universal epistemic point of view. According to the classical analysis, since truth is a necessary condition of knowledge, it does not make sense to talk about “false knowledge” or “knowing wrongly.” There are nonetheless some natural languages in which speakers ordinarily make statements about a person’s knowing a given subject matter wrongly. In this paper, we first provide a brief analysis of “knowing wrongly” in Turkish. (...) Then, taking Allan Hazlett’s recent account of the gap between traditional analyses of knowledge and actual epistemic practices of real cognitive agents as a point of departure, we spell out a non-universalist and non-extensionalist perspective on the value of “knowing wrongly.”. (shrink)

The Introduction to the collection of papers, _Reflexivity: A Source-book in Self-reference_. The Introduction studies the limits of our understanding that we carry unavoidably with us. We are perpetually confined within the horizons of our conceptual structure. When this structure grows or expands, the breadth of our comprehensions enlarges, but we are forever barred from the wished-for glimpse beyond its boundaries, no matter how hard we try, no matter how much credence we invest in the substance of our learning and (...) mist of speculation. (shrink)

Ernest Sosa has made and continues to make major contributions to a wide variety of topics in epistemology. In this paper I discuss some of his core ideas about the nature of knowledge and scepticism. I start with a discussion of the safety account of knowledge – a view he has championed and further developed over the years. I continue with some questions concerning the role of the concept of an epistemic virtue for our understanding of knowledge. Safety and virtue (...) hang very closely together for Sosa. All this easily leads to some thoughts on epistemic scepticism and on Sosa's stance on this. (shrink)

Introduction: externalism and modalism -- Externalism -- Modalism -- What should the theory do? -- What's missing? -- Process reliabilism -- Goldman's causal theory -- Goldman's discrimination requirement and relevant alternatives -- Process reliabilism and why it is not enough -- Implications for skepticism -- Sensitivity -- Nozick's subjunctive conditional theory of knowledge -- Methods : an important refinement -- Objections to nozicks theory -- Safety -- Motivating safety -- Weak and strong safety : luck and induction -- Is safety (...) necessary for knowledge? -- Luck revisited : safety requires a process reliability condition -- Is reliability compatible with knowledge of the denials of skeptical hypotheses? -- Knowledge : reliably formed sensitive true belief -- The theory -- Problems and clarifications -- Closure and the value problem -- Closure -- The value problem. (shrink)

Roderick Chisholm argues that in giving an account of knowledge, we must either begin with an account of what knowledge is, and proceed on that basis to identify the particular things that we know, or else start with instances of knowledge, and proceed on that basis to formulate a definition of knowledge. Either approach begs the question against the other. This is the epistemic wheel. This article responds to Chisholm's challenge. It begins with cases of knowledge attribution and builds its (...) account from there, identifying those features that we take to be present in the cases where we have attributed knowledge and those features that seem important when we want to withhold an attribution of knowledge. The proposal does not beg the question against either particularists or methodists; it takes the best features of each view, without beginning with either, and thereby removes us from the wheel. (shrink)

This is a reply to John N. Williams’ paper “Not Knowing You Know: A New Objection to the Defeasibility Theory of Knowledge'” (2015). That paper argues that Peter Klein’s defeasibility theory of knowledge excludes the possibility of one knowing that one has (first-order) a posteriori knowledge. Klein himself answered a version of this objection in his (1971). Williams’ paper adds a new twist to the 1971 objection. I argue that Williams’ objection misses its target because of this new twist.

According to proper functionalist theories of warrant, a belief is warranted only if it is formed by cognitive faculties that are properly functioning according to a good, truth-aimed design plan, one that is often thought to be specified either by intentional design or by natural selection. A formidable challenge to proper functionalist theories is the Swampman objection, according to which there are scenarios involving creatures who have warranted beliefs but whose cognitive faculties are not properly functioning, or are poorly designed, (...) or are not aimed at truth. In this paper, we draw lessons from cognitive science in order to develop a novel argument for the conclusion that the Swampman objection fails against proper functionalist theories of warrant. Our argument not only shows that the underlying, central intuition motivating Swampman-like scenarios is false but also motivates proper function as a necessary condition for warrant, thereby lending support to the claim that any theory of knowledge that lacks a proper function requirement is false. (shrink)

Introduction to the collection "Knowledge Ascriptions" (eds. Brown, J. and Gerken, M.).

Contrastive epistemologists say knowledge displays the ternary relation “S knows p rather than q”. I argue that “S knows p rather than q” is often equivalent to “S knows p rather than not-p” and hence equivalent to “S knows p”. The result is that contrastive knowledge is often binary knowledge disguised.

In a series of works Ernest Sosa (see Sosa 1991, 2007, 2009, 2010, 2011, 2015, 2017) has defended the view that there are two kinds or ‘grades’ of knowledge, animal and reflective. One of the most persistent critics of Sosa’s attempts to bifurcate knowledge is Hilary Kornblith (see Kornblith 2004, 2009, 2012). Our aim in this paper is to outline and evaluate Kornblith’s criticisms. We will argue that, while they raise a range of difficult (exegetical and substantive) questions about Sosa’s (...) ‘bi-level’ epistemology, Sosa has the resources to adequately respond to all of them. Thus, this paper is a (qualified) defence of Sosa’s bi-level epistemology. (shrink)

According to the KK-principle, knowledge iterates freely. It has been argued, notably in Greco, that accounts of knowledge which involve essential appeal to normality are particularly conducive to defence of the KK-principle. The present article evaluates the prospects for employing normality in this role. First, it is argued that the defence of the KK-principle depends upon an implausible assumption about the logical principles governing iterated normality claims. Once this assumption is dropped, counter-instances to the principle can be expected to arise. (...) Second, it is argued that even if the assumption is maintained, there are other logical properties of normality which can be expected to lead to failures of KK. Such failures are noteworthy, since they do not depend on either a margins-for-error principle or safety condition of the kinds Williamson appeals to in motivating rejection KK. “Introduction: KK and Being in a Position to Know” Section formulates two versions of the KK-Principle; “Inexact Knowledge and Margins for Error” Section presents a version of Williamson’s margins-for-error argument against it; “Knowledge and Normality” and “Iterated Normality” Sections discuss the defence of the KK-Principle due to Greco and show that it is dependent upon the implausible assumption that the logic of normality ascriptions is at least as strong as K4; finally, “Knowledge in Abnormal Conditions” and “Higher-Order Ignorance Inside the Margins” Sections argue that a weakened version of Greco’s constraint on knowledge is plausible and demonstrate that this weakened constraint will, given uncontentious assumptions, systematically generate counter-instances to the KK-principle of a novel kind. (shrink)

In this paper I defend a unified approach to knowledge and understanding. Both are achievements due to cognitive abilities or skills. The difference between them is a difference of aspects. Knowledge emphasizes the successful aspect of an achievement and the exclusion of epistemic luck, whereas understanding emphasizes the agent's contribution in bringing about an achievement through the exercise of one's cognitive skills. Knowledge and understanding cannot be separated. I argue against the claim that understanding is distinct from knowledge because the (...) former is compatible with environmental luck. Achievements rule out environmental luck because abilities can be exercised only in their proper environment. I also reject the intellectualist claim that understanding requires the ability to explain what one intends to understand. The understanding of an item is reflected in our ability to solve cognitive tasks using that item. The more tasks one can deal with by using an item, the deeper is one’s understanding of that item. Being able to explain why a claim holds is not necessary for possessing understanding, even though it may be necessary for accomplishing some very specific tasks. Neither understanding nor knowledge require any kind of second-order cognition by default. (shrink)

Three decades ago Laudan posed the challenge: Why should the logic of discovery be revived? This paper tries to answer this question arguing that the logic of discovery should be revived, on the one hand, because, by Gödel’s second incompleteness theorem, mathematical logic fails to be the logic of justification, and only reviving the logic of discovery logic may continue to have an important role. On the other hand, scientists use heuristic tools in their work, and it may be useful (...) to study such tools systematically in order to improve current heuristic tools or to develop new ones. As a step towards reviving the logic of discovery, the paper follows Aristotle in asserting that logic must be a tool for the method of science, and outlines an approach to the logic of discovery based on the analytic method and on ampliative inference rules. (shrink)

The Proper Functionist account of warrant – like many otherexternalist accounts – is vulnerable to certain Gettier-style counterexamples involving accidentally true beliefs. In this paper, I briefly survey the development of the account, noting the way it was altered in response to such counterexamples. I then argue that Alvin Plantinga's latest amendment to the account is flawed insofar as it rules out cases of true beliefs which do intuitively strike us as knowledge, and that a conjecture recently put forward by (...) Thomas Crisp is also defective. I conclude by presenting my own suggestion as to how the account can be made less vulnerable to counterexamples involving accidentally true beliefs. Although I stay within the confines of Proper Functionism here, I think that my proposal (modulo a few details) could be attached to other externalist accounts of warrant as well. -/- . (shrink)

It is a piece of philosophical commonsense that belief and knowledge are states. Some epistemologists reject this claim in hope of answering certain difficult questions about the normative evaluation of belief. I shall argue, however, that this move offends not only against philosophical commonsense but also against ordinary common sense, at least as far as this is manifested in the semantic content of the words we use to talk about belief and knowledge. I think it is relatively easily to show (...) with some linguistic tests that ordinary belief and knowledge attributions should be classified aspectually as state descriptions. Hence, the move some epistemologists to deny that belief and knowledge are states threatens to simply change the topic rather than open up answers to difficult questions in epistemology. I do not know fully how to answer the relevant questions about the normative evaluation of belief, but I pursue this critical point here in service of a positive proposal about the general framework in which they should be answered. In brief, the general framework is one which recognizes an important place for what I call state-norms, beside the action-norms which are more familiar from normative theory. And it locates the epistemic norms that apply to beliefs and are relevant for knowledge on the state-norm side of this divide. This turns out to be not only consistent with but indeed to underwrites the philosophical and ordinary commonsense that belief and knowledge are states. (shrink)

The Gettier Problem is the problem of revising the view that knowledge is justified true belief in a way that is immune to Gettier counter-examples. The “Gettier Problem problem”, according to Lycan, is the problem of saying what is misguided about trying to solve the Gettier Problem. In this paper I take up the Gettier Problem problem. I distinguish giving conditions that are necessary and sufficient for knowledge from giving conditions that explain why one knows when one does know. I (...) argue that the problem with the Gettier Problem is that it requires us to articulate conditions that suffice for knowledge even if those conditions are non-explanatory. After defending this view, I take up two related methodological issues, one about the evidence that can be given in favor of an account of knowledge, and one about the role that investigating justification might play in investigating knowledge. (shrink)

In this essay, which draws on a set of interrelated issues in the phenomenology of perception, I call into question the assumption that Buddhist philosophers of the Dignāga-Dharmakīrti tradition pursue a kind of epistemic foundationalism. I argue that the embodied cognition paradigm, which informs recent efforts within the Western philosophical tradition to overcome the Cartesian legacy, can be also found– albeit in a modified form–in the Buddhist epistemological tradition. In seeking to ground epistemology in the phenomenology of cognition, the Buddhist (...) epistemologist, I claim, is operating on principles similar to those found in Husserl’s phenomenological tradition. (shrink)

Knowledge generation can be naturalized by adopting computational model of cognition and evolutionary approach. In this framework knowledge is seen as a result of the structuring of input data (data → information → knowledge) by an interactive computational process going on in the agent during the adaptive interplay with the environment, which clearly presents developmental advantage by increasing agent’s ability to cope with the situation dynamics. This paper addresses the mechanism of knowledge generation, a process that may be modeled as (...) natural computation in order to be better understood and improved. (shrink)

Well-known epistemologies of science have implications for how best to understand knowledge transfer (KT). Yet, to date, no serious attempt has been made explicate these particular implications. This paper infers views about KT from two popular epistemologies; what we characterize as incommensurabilitist views (after Devitt 2001; Bird 2002, 2008; Sankey and Hoyningen-Huene 2013) and voluntarist views (after van Fraassen 1984; Dupré 2001; Chakravartty 2015). We argue views of the former sort define the methodological, ontological, and social conditions under which research (...) operates within ‘different worlds’ (to use Kuhn’s expression), and entail that genuine KTs under those conditions should be difficult or even impossible. By contrast, more liberal voluntarist views recognize epistemological processes that allow for transfers across different sciences even under such conditions. After outlining these antithetical positions, we identify two kinds of KTs of two kinds present in well-known episodes in the history of ecology—specifically, successful model transfers from chemical kinetics and thermodynamics into areas of ecological research—which reveal significant limitations of incommensurabilitist views. We conclude by discussing how the selected examples support a pluralistic voluntarism regarding KT. (shrink)

This paper provides an overview of connective knowledge. It is intended to be an introduction, expressed as non-technically as possible.

Bolzano was the first to establish an explicit distinction between the deductive methods that allow us to recognise the certainty of a given truth and those that provide its objective ground. His conception of the relation between what we, in this paper, call "subjective consequence", i.e., the relation from epistemic reason to consequence and "objective consequence", i.e., grounding however allows for an interpretation according to which Bolzano advocates an "explicativist" conception of proof: proofs par excellence are those that reflect the (...) objective order of grounding. In this paper, we expose the problems involved by such a conception and argue in favour of a more rigorous demarcation between the ontological and the epistemological concern in the elaboration of a theory of demonstration. (shrink)

Dans cet ouvrage, l’auteur discute d’abord un un ensemble d’idées de sens commun qui permettent de mieux cerner la notion de connaissance : nous savons beaucoup de choses, ce que nous savons ne vient pas toujours des sciences, tout ce que nous savons est vrai, la connaissance est le but de l’enquête, on ne doit croire et affirmer que ce que l’on sait, on ne doit agir que sur la base de ce que l’on sait, la connaissance a de la (...) valeur. Il donne ensuite une vue d’ensemble des débats contemporains en philosophie de la connaissance en les resituant dans une perspective historique. (shrink)

In this paper, we present the results of two surveys that investigate subjects’ judgments about what can be known or justifiably believed about lottery outcomes on the basis of statistical evidence, testimonial evidence, and “mixed” evidence, while considering possible anchoring and priming effects. We discuss these results in light of seven distinct hypotheses that capture various claims made by philosophers about lay people’s lottery judgments. We conclude by summarizing the main findings, pointing to future research, and comparing our findings to (...) recent studies by Turri and Friedman. (shrink)

Hegel definiert „Vernunft” als die Einheit der Objektivität und der Subjektivität. Diese Definition bedeutet nicht, dass für Hegel nur das Subjekt existiert, welches sich das Objekt dementsprechend nur in seinem Inneren vorstellt; eine solche Definition bedeutet nämlich nicht, dass es für Hegel keine Außenwelt gibt, sondern eigentlich, dass es für ihn nichts gibt, was als solches unvernünftig ist. Als Einheit des Subjekts, das erkennt, und des Objekts, das erkannt wird, umfasst die Vernunft für Hegel alles, was es gibt und geben (...) kann. Jene Definition bedeutet eben: Es gibt nichts außerhalb dessen, was das Subjekt erkennt und erkennen kann. Mit dieser These verneint Hegel selbstverständlich nicht, dass es Sachen gibt, die das Subjekt noch nicht kennt bzw. von deren Existenz es noch nicht weiß, und auch nicht, dass es keine Sachen gibt, die das Subjekt noch nicht verstanden und begriffen hat, sondern eigentlich nur, dass es keine Sachen gibt, die prinzipiell nicht erkannt und begriffen werden können. Dass etwas existiert, impliziert für Hegel, dass es eventuell erkannt und fernerhin begriffen werden kann. Sein, Erkennbarsein und Begreifbarsein sind für Hegel ein und dasselbe. (shrink)

Además de la percepción sensible y del conocimiento por medio de conceptos abstractos, Hegel distingue una tercera forma específica de conocer de la inteligencia humana, a saber: el “pensar”. Hegel define el pensar como la unidad del objeto y el sujeto. Ahora bien, ¿no es el objeto exterior dado a la percepción sensible después de todo siempre diferente del contenido de la representación abstracta del sujeto? Si con la categoría “pensar” Hegel no se refiere en realidad a una forma más (...) de representar, ¿a qué actividad concreta y reconocible de la inteligencia se refiere entonces propiamente? Nuestro trabajo tiene por objeto responder a esta pregunta analizando la función específica que Hegel le atribuye al lenguaje en relación con el pensamiento, toda vez que en la progresiva elevación del sujeto cognoscente a la actividad de pensar y comprender la realidad el lenguaje ocupa en su concepción un lugar decisivo y fundamental. (shrink)

Edmund Gettier’s three-page article is generally regarded as a classic of epistemology. I argue that Gettier cases depend upon three false assumptions and are irrelevant to the theory of knowledge. I suggest that we follow Karl Popper in abandoning subject-centred epistemologies in favour of theories of objective knowledge.

I begin by criticizing reductionist knowledge-first epistemology according to which knowledge can be used to reductively analyze other epistemic phenomena. My central concern is that proponents of such an approach commit a similar mistake to the one that they charge their opponents with. This is the mistake of seeking to reductively analyze basic epistemic phenomena in terms of other allegedly more fundamental phenomena. I then turn to non-reductionist brands of knowledge-first epistemology. Specifically, I consider the knowledge norms of assertion and (...) contrast them with an alternative that I have developed elsewhere (Gerken 2011, 2012a, 2013b, 2014, 2015a, 2015c, MS). On the basis of the critical discussion, I question whether a knowledge-first program that is both plausible and distinctive has been identified. On a more positive note, I sketch the contours of an alternative that I label ‘equilibristic epistemology.’ According to this approach, there isn’t a single epistemic phenomenon or concept that is “first.” Rather, there are a number of basic epistemic phenomena that are not reductively analyzable although they may be co-elucidated in a non-reductive manner. This approach preserves some grains of truth in knowledge-first epistemology. For example, it preserves the idea that knowledge can be taken to be explanatorily basic and unanalyzable. However, since no single epistemic phenomenon is first, knowledge is not first. (shrink)

[ES] En este breve trabajo, se presenta una edición bilingüe de Is Justified True Belief Knowledge? (1963), de Edmund L. Gettier, donde se presentan contraejemplos a la definición de «conocimiento» como «creencia verdadera justificada». [ES] In this brief text, a bilingual edition of Is Justified True Belief Knowledge?, (1963) by Edmund L. Gettier, some counterexamples are presented to the definition of «knowledge» as «justified true belief».

The amount of data to which a human is exposed has increased over time. The Delude is defined here as an individual that is overwhelmed by various incoherent and false assertions that data contains. This writing is a philosophical study that reflects on the epistemic conditions in which knowledge is accumulated. It is obvious that large amounts of falsehood, when regarded as truth, can induce heavy damage to anyone's intellect. -/- Frequently, a faulty mental state is induced by corrupt knowledge. (...) "The Delude" is an individual predisposed to accept as true large amounts of incoherent and false opinions. Understanding the complex conditions that induce a person to become 'a delude' is important; it is probable that these conditions will trigger a sad, miserable, and even an anti-social life. -/- The following are quotes from the text: -/- • The concept of the “delude” forwards the inference that man is not guaranteed rationality; man is merely capable of being rational. • What typically the deluded fool says is not right or even wrong; it is downright stupid. • At times, facts are in front of us; the blind can't see them, the deaf can't hear them, and the deluded fool can't believe them! • Delude: an individual who regards his own mental fascinations as reality, and is predisposed to strongly dedicate his or her entire life to a single idea which can be useful or destructive to his or her own life. • A generally accepted opinion is not, on that basis, guaranteed valid or a proof of its accuracy; equally, it is not proof of its falsity. The writing was reviewed by KIRKUS REVIEWS and also has a stared review from the ForeWord REVIEWS: -/- • In many instances, Gondor’s descriptions conjure a human image to the reader’s mind—i.e., “Extremism,” Gondor warns, “is a direct consequence of a highly deluded mind,” and particularly in politics and religion, he says, the delude can be a dangerous, unsettling force. – KIRKUS REVIEWS. -/- • According to Gondor, deludes tend to be conservative in their beliefs and convinced that their opinions are irrevocably true, despite evidence to the contrary. – ForeWord REVIEWS. -/- • Gondor believes that this narrow view comes from ingrained prejudices and limited cognitive ability, and he asserts that deluded people lack the capacity to objectively consider opposing or multiple perspectives. Consequently, they cling to the positions they understand with single-minded determination and often become radical advocates of those opinions. For example, an avid environmentalist who argues adamantly for the preservation of old-growth forests but also drives a large gas-guzzling and polluting truck through those same woods would be considered a delude. – ForeWord REVIEWS. -/- Fun reading, many ideas. Not the top of the mountain, but on the way there. You can dowload a PDF copy from this website, or can get a printed copy on Amazon.com. (shrink)

After some years (or millennia) most works would no longer be considered eligible for "review." But an exception is called for, if the thrust of an older work is closely paralleled in a much more modern piece, as is the case between Plato's Theaetetus and Richard Rorty's acclaimed, and more recent volume, Philosophy and the Mirror of Nature. To fully understand and appreciate Rorty 's contribution to the subjects he raises, one must study his book in conjunction with Plato's Theaetetus-where (...) very similar issues have been discussed before. Both works concern a central question for philosophy: "What is knowledge?" The discussants in Plato's dialogue the Theaetetus, never do succeed in finding a satisfactory definition for knowledge, yet they at least realize to avoid thinking they know about the subject when, in fact, they lack that knowledge. Since Rorty explores some new (and not so new) ideas on these topics, Plato's discussants ask him a few questions. (Reprinted from original in Antioch Review). (shrink)

Knowledge ascriptions of the form ‘S knows that p’ are a central area of research in philosophy. But why do humans think and talk about knowledge? What are knowledge ascriptions for? This article surveys a variety of proposals about the role of knowledge ascriptions and attempts to provide a unified account of these seemingly distinct views.

Many epistemologists think we can derive important theoretical insights by investigating the English word ‘know’ or the concept it expresses. However, fewer than six percent of the world’s population are native English speakers, and some empirical evidence suggests that the concept of knowledge is culturally relative. So why should we think that facts about the word ‘know’ or the concept it expresses have important ramifications for epistemology? This paper argues that the concept of knowledge is universal: it is expressed by (...) some word in every natural language. I also explore the implications of this thesis for philosophical methodology. (shrink)

This paper defends the epistemological doctrine of fallibilism from recent objections. In “The Myth of Knowledge” Laurence BonJour argues that we should reject fallibilism for two main reasons: first, there is no adequate way to specify what level of justification is required for fallible knowledge; second, we cannot explain why any level of justification that is less than fully conclusive should have the significance that makes knowledge valuable. I will reply to these challenges in a way that allows me to (...) make progress on a number of important issues in contemporary epistemology: epistemic value, the functional roles of knowledge attributions, experimental epistemology, skepticism, the Gettier problem, and the lottery paradox. My argument is motivated by appealing to various insights derived from the method of ‘practical explication’, particularly the idea that a central purpose of the concept of knowledge is to flag reliable informants. My conclusion is that various practical and theoretical considerations derived from the method of practical explication support the fallibilist conception of knowledge. (shrink)

In When is True Belief Knowledge? (2012) Richard Foley proposes an original and strikingly simple theory of knowledge: a subject S knows some proposition p if and only if S truly believes that p and does not lack any important information. If this view is correct, Foley allegedly solves a wide variety of epistemological problems, such as the Gettier problem, the lottery paradox, the so-called ‘value problem’, and the problem of skepticism. However, a central component of his view is that (...) whether a true belief counts as knowledge depends on the importance of the information that one has or lacks. My paper raises doubts about whether there is a non-circular way to distinguish important information from unimportant information. I argue that there is no way to distinguish important information from unimportant information without ultimately making reference to knowledge; thus, Foley’s new theory of knowledge does not achieve its goals. (shrink)

Single-premise epistemic closure is the principle that: if one is in an evidential position to know that P where P entails Q, then one is in an evidential position to know that Q. In this paper, I defend the viability of opposition to closure. A key task for such an opponent is to precisely formulate a restricted closure principle that remains true to the motivations for abandoning unrestricted closure but does not endorse particularly egregious instances of closure violation. I focus (...) on two brands of epistemic theory that naturally incorporate closure restrictions. The first type holds that the truth value of a knowledge ascription is relative to a relevant question. The second holds that the truth value of a knowledge ascription is relative to a relevant topic. For each approach, I offer a formalization of a leading theory from the literature and use this formalization to evaluate the theory’s adequacy in terms of a precise set of desiderata. I conclude that neither theory succeeds in meeting these desiderata, casting doubt on the viability of the underlying approaches. Finally, I offer a novel variant of the topic-sensitive approach that fares better. (shrink)