What is the relationship between lying, belief, and knowledge? Prominent accounts of lying define it in terms of belief, namely telling someone something one believes to be false, often with the intent to deceive. This paper develops a novel account of lying by deriving evaluative dimensions of responsibility from the knowledge norm of assertion. Lies are best understood as special cases of vicious assertion; lying is the anti-paradigm of proper assertion. This enables an account of lying (...) in terms of knowledge: roughly, lying is telling someone something you know ain't so. (shrink)

The paper addresses an exegetical puzzle that is raised by Kant's distinction between opining (Meinen), believing (Glauben), and knowing (Wissen). In presenting his moral arguments, Kant often points out that belief, as he conceives of it, has a unique feature: it requires non-epistemic justification. Yet Kant's official formulation of the tripartite distinction runs counter to this claim. It describes Belief in terms of a set of two features, each of which also pertains to either opinion or knowledge. (...) My aim in this paper is to propose a novel interpretation of Kant’s distinction which dissolves this exegetical puzzle. (shrink)

Parental beliefs and knowledge about child development affect how they construct children’s home learning experiences, which in turn impact children’s developmental outcomes. A rapidly growing population of dual language learners (DLLs) highlights the need for a better understanding of parents’ beliefs and knowledge about dual language development and practices to support DLLs. The current study examined the dual language beliefs and knowledge of parents of Spanish-English preschool DLLs (n= 32). We further asked how socioeconomic and sociocultural factors (...) were associated with parental beliefs and knowledge, and how parental beliefs and knowledge related to DLLs’ home dual language experiences and school readiness skills as rated by their teachers. Results suggested both strengths and opportunities for growth in parental beliefs and knowledge. Moreover, parents from higher-SES backgrounds reported beliefs and knowledge that were more consistent with scientific evidence. Furthermore, parental beliefs and knowledge was positively related to relative Spanish input at home and negatively related to the frequency of English language and literacy activities. However, parental beliefs and knowledge were not associated with children’s dual language output at home or the frequency of Spanish language and literacy activities. Finally, parental beliefs and knowledge were associated with children’s school readiness skills in Spanish but not in English. Together, these findings highlight the need for culturally responsive interventions and parent education programs, which must recognize both the strengths and areas of improvement in parents of DLLs and support parents to transform knowledge into high-quality language and literacy experiences that benefit DLLs. (shrink)

Articles, most previously published in periodicals, 1955-1975.

Contesting much contemporary epistemology and cognitive science, noted philosopher Kenneth M. Sayre argues that, while some cognitive attitudes such as believing take propositions as objects, there are many others whose objects are instead states of affairs.

Distinguishing sense and referent in true belief that is not knowledge and true belief that is knowledge implies scepticism as regards facts. That is because it falsely reduces knowledge to mere true belief To remove the scepticism, it might be held that sense and referent are the same in both. But this over-correction makes the opposite mistake of reducing mere true belief to knowledge. It also implies either assimilating false belief to (...) true belief or saying, counterintuitively, that the sense of a belief varies with the truth-value of the belief The way out is to take the middle path of distinguishing sense and referent in true belief that is not knowledge and identifying sense and referent in true belief that is knowledge. (shrink)

Distinguishing sense and referent in true belief that is not knowledge and true belief that is knowledge implies scepticism as regards facts. That is because it falsely reduces knowledge to mere true belief To remove the scepticism, it might be held that sense and referent are the same in both. But this over-correction makes the opposite mistake of reducing mere true belief to knowledge. It also implies either assimilating false belief to (...) true belief or saying, counterintuitively, that the sense of a belief varies with the truth-value of the belief The way out is to take the middle path of distinguishing sense and referent in true belief that is not knowledge and identifying sense and referent in true belief that is knowledge. (shrink)

Recent decades have seen a fertile period of theorizing within mainstream epistemology which has had a dramatic impact on how epistemology is done. Investigations into contextualist and pragmatic dimensions of knowledge suggest radically new ways of meeting skeptical challenges and of understanding the relation between the epistemological and practical environment. New insights from social epistemology and formal epistemology about defeat, testimony, a priority, probability, and the nature of evidence all have a potentially revolutionary effect on how we understand our (...) epistemological place in the world. Religion is the place where such rethinking can potentially have its deepest impact and importance. Yet there has been surprisingly little infiltration of these new ideas into philosophy of religion and the epistemology of religious belief. -/- Knowledge, Belief, and God incorporates these myriad new developments in mainstream epistemology, and extends these developments to questions and arguments in religious epistemology. The investigations proposed in this volume offer substantial new life, breadth, and sophistication to issues in the philosophy of religion and analytic theology. They pose original questions and shed new light on long-standing issues in religious epistemology; and these developments will in turn generate contributions to epistemology itself, since religious belief provides a vital testing ground for recent epistemological ideas. (shrink)

In her recent paper, “Belief, Values and the Will,” Trudy Govier raises several interesting and challenging points. Most interesting is her conclusion that it is at least logically possible for a person to believe something “simply in virtue of having taken that decision,” i.e., by fiat. In otherwords, it is possible to believe something by an act of will.

Self-referential sentences have troubled our understanding of language for centuries. The most famous self-referential sentence is probably the Liar, a sentence that says of itself that it is false. The Liar Paradox has encouraged many philosophers to establish theories of truth that manage to give a proper account of the truth predicate in a formal language. Kripke’s Fixed Point Theory from 1975 is one famous example of such a formal theory of truth that aims at giving a plausible notion of (...) truth by allowing truth value gaps. However, not only the concept of truth gives rise to paradoxes. A syntactical treatment of epistemic notions like belief and knowledge leads to contradictions that very much resemble the Liar Paradox. Therefore, it seems to be fruitful to apply the established theories of truth to epistemic concepts. In this paper, I will present one such attempt of solving the epistemic paradoxes: I adapt Kripke’s Fixed Point Theory and interpret truth, knowledge and belief within the framework of a partial logic. Thereby I find not only the fixed point of truth but also the fixed points of knowledge and belief. In this fixed point, the predicates of truth, belief and knowledge find their definite interpretation and the paradoxes are avoided. (shrink)

First published in 1986, Knowledge, Belief, and Witchcraft remains the only analysis of indigenous discourse about an African belief system undertaken from within the framework of Anglo-American analytical philosophy. Taking as its point of departure W. V. O. Quine's thesis about the indeterminacy of translation, the book investigates questions of Yoruba epistemology and of how knowledge is conceived in an oral culture.

Seven features which in practice seem to differentiate belief systems from knowledge systems are discussed. These are: nonconsensuality, “existence beliefs,” alternative worlds, evaluative components, episodic material, unboundedness, and variable credences. Each of these features gives rise to challenging representation problems. Progress on any of these problems within artificial intelligence would be helpful in the study of knowledge systems as well as belief systems, inasmuch as the distinction between the two types of systems is not absolute.

Over the last two decades foundationalism has been severely criticized. In response to this various alternatives to it have been advanced, notably coherentism. At the same time new versions of foundationalism were crafted, that were claimed to be immune to the earlier criticisms. This volume contains 12 papers in which various aspects of this dialectic are covered. A number of papers continue the trend to defend foundationalism, and foundationalism's commitment to basic beliefs and basic knowledge, against various attacks. Others (...) aim to show that one important objection against coherentism, viz. that the notion of 'coherence' is too vague to be useful, can be countered. (shrink)

Many of the cognitive and social sciences deal with the question of how beliefs or belief-like states are produced and transmitted to others. Let us call any account or theory of belief-formation and propagation a doxology. I don’t use that term, of course, in the religious or theological sense. Rather, I borrow the Greek term ‘doxa’ for belief or opinion, and use ‘doxology’ to mean the study or theory of belief-forming processes. How is doxology related to (...) epistemology? Epistemology is the theory of knowledge, and according to standard accounts knowledge is justified true belief. Since knowledge entails belief, doxology would seem to be intimately related to epistemology. How can we say what produces knowledge unless we can say what produces belief? Of course, many epistemologists are not so interested in what produces knowledge. They are interested in specifying the conditions definitive of knowing. We need not be so restrictive, however, about epistemology’s scope. Historically, epistemology was concerned with the sources or methods of knowing: which methods of belief-formation, which routes to belief, augur well not only for belief production but for the production of knowledge? Which routes to belief offer good prospects for yielding true, justified belief? (shrink)

These replies to commentators on my work focus on the nature of epistemic norms, on the nature of truth and on the nature and value of knowledge. A normative account of belief and knowledge is committed to substantial and objective epistemic norms. But not everyone agrees on their form. I try here to reply to some doubts raised by my critics.

This Chapter discusses the questions of (8.1) Acquiring moral beliefs and knowledge: normal cases, (8.2) cases of missing knowledge, (8.3), Moral disagreements.

This book is addresses a topic that has received little or no attention in orthodox epistemology. Typical epistemological investigation focuses almost exclusively on knowledge, where knowing that something is the case importantly implies that what is believed is strictly true. This condition on knowledge is known as factivity and it is, to be sure, a bit of epistemological orthodoxy. So, if a belief is to qualify as knowledge according to the orthodox view it cannot be false. (...) There is also an increasingly influential group of epistemologists who argue that one ought to act only on what one knows, because truth of belief is the surest way to guarantee that our actions work out as planned. They defend what is known as the knowledge norm for action. This view is typically justified in virtue of the idea that successful intentional action should stem from knowledge because knowledge is a factive propositional attitude and it is, as a result, success-prone with respect to intentional action. In other words, true beliefs that constitute knowledge are the rationally normative standard for successful acting. But, there are clearly multitudes of cases where epistemic agents operate successfully and even rationally on the basis of beliefs that are false. That this is the case is not especially controversial. Sometimes false beliefs facilitate successful action. Of course, this can be because the agent is simply lucky. However, there is something particularly important about some false beliefs that relates to successful action but not in virtue of luck. While not strictly true, the beliefs in question are close to the truth or approximately true. This gives rise to the possibility that there are knowledge-like states that play roles very similar to knowledge but which are only quasi-factive. That is to say such states imply approximate truth and do not imply strict truth. Moreover, often such beliefs facilitate successful action in virtue of their being approximately true and this suggests a much more plausible norm for successful action that encompasses both cases of rational action guided by such quasi-factive states as well as cases of rational action guided by knowledge. The thesis of this book is that quasi-factive knowledge-like states are far more common that epistemologists have acknowledge and the book introduces a theory of such states and how they give rise to a much more reasonable account of the norms for action. This involves some tricky issues concerning approximate truth, the rationality of believing not strictly true claims, the justification of approximately true beliefs, the nature of false but approximately true evidence, the norms of belief, knowledge and quasi-knowledge, etc. (shrink)

It is a piece of philosophical common sense 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 common sense that belief and knowledge are states. (shrink)

Given the significant exculpatory power that ignorance has when it comes to moral, legal, and epistemic transgressions, it is important to have an accurate understanding of the concept of ignorance. According to the Standard View of factual ignorance, a person is ignorant that p whenever they do not know that p, while on the New View, a person is ignorant that p whenever they do not truly believe that p. On their own though, neither of these accounts explains how ignorance (...) can often be a degreed notion—how we can sometimes be slightly ignorant, quite ignorant, or completely ignorant that p. In this paper, I will argue that there is a route for advocates of the Standard View and the New View to accommodate the gradability of ignorance. On the view I defend, ‘ignorant’ picks out everyone that is ignorant to some degree, making it possible that ignorance can be both degreed and characterized as a lack of knowledge or true belief. Even though we can be ignorant to a greater or lesser extent, the only way to avoid being ignorant that p is to know or truly believe. (shrink)

This paper challenges the first Gettier counterexample to the tripartite account of knowledge. Noting that 'the man who will get the job' is a description and invoking Donnellan's distinction between their 'referential' and 'attributive' uses, I argue that Smith does not actually believe that the man who will get the job has ten coins in his pocket. Smith's ignorance about who will get the job shows that the belief cannot be understood referentially, his ignorance of the coins in (...) his pocket shows that it cannot be understood attributively. An explanation for why Smith appeared to have justified true belief is given by distinguishing between 'belief' and 'belief in truth'. Smith believes the sentence 'the man who will get the job has ten coins in his pocket' to be true (he mistakenly believes that Jones will get the job, of whom he knows that he has ten coins in his pocket) (hence his 'belief'), the sentence is true (hence 'truth'), and he has sufficient reason to assent to it (hence his 'justification'). But he does not believe the proposition expressed. Hence he does not know it either. (shrink)

The paper discusses the thesis of extended belief and its implications for the possibility of extending ordinary, personal level knowledge. A common worry is that knowledge will overextend, that there will be ‘cognitive bloat’. If the subject’s standing beliefs can be realized in devices such as notebooks and smart phones, what is there to prevent the conclusion that she knows everything stored on such devices? One response to this worry is to block the move from belief (...) to knowledge, and argue that these externally stored beliefs, although reliable, do not qualify as knowledge. I argue, instead, that the fundamental problem arises at the level of belief. We prevent bloating of knowledge by preventing the bloating of belief. To do so, I argue, we need to take seriously Clark and Chalmers’ suggestion that what is distinctive of belief is its role in folk psychological explanations. Paying attention to this role shows that the usual examples, such as Otto’s notebook information, do not qualify as beliefs. To qualify, the external information would have to be much more directly connected to, and deeply integrated into, the subject’s overall system of beliefs and desires. (shrink)

The aim of this paper is to argue that what I call the simple theory of introspection can be extended to account for our introspective knowledge of what we believe as well as what we consciously experience. In section one, I present the simple theory of introspection and motivate the extension from experience to belief. In section two, I argue that extending the simple theory provides a solution to Moore’s paradox by explaining why believing Moorean conjunctions always involves (...) some degree of irrationality. In section three, I argue that it also solves the puzzle of transparency by explaining why it’s rational to answer the question whether one believes that p by answering the question whether p. Finally, in section four, I defend the simple theory against objections by arguing that self-knowledge constitutes an ideal of rationality. (shrink)

A wide-ranging study of the central concepts in epistemology - belief, truth and knowledge. Professor Armstrong offers a dispositional account of general beliefs and of knowledge of general propositions. Belief about particular matters of fact are described as structures in the mind of the believer which represent or 'map' reality, while general beliefs are dispositions to extend the 'map' or introduce casual relations between portions of the map according to general rules. 'Knowledge' denotes the reliability (...) of such beliefs as representations of reality. Within this framework Professor Armstrong offers a distinctive account of many of the main questions in general epistemology - the relations between beliefs and language, the notions of proposition, concept and idea, the analysis of truth, the varieties of knowledge, and the way in which beleifs and knowledge are supported by reasons. The book as a whole if offered as a contribution to a naturalistic account of man. (shrink)

Deliberation about what to do in any context requires reasoning about what will or would happen in various alternative situations, including situations that the agent knows will never in fact be realized. In contexts that involve two or more agents who have to take account of each others' deliberation, the counterfactual reasoning may become quite complex. When I deliberate, I have to consider not only what the causal effects would be of alternative choices that I might make, but also what (...) other agents might believe about the potential effects of my choices, and how their alternative possible actions might affect my beliefs. Counterfactual possibilities are implicit in the models that game theorists and decision theorists have developed – in the alternative branches in the trees that model extensive form games and the different cells of the matrices of strategic form representations – but much of the reasoning about those possibilities remains in the informal commentary on and motivation for the models developed. Puzzlement is sometimes expressed by game theorists about the relevance of what happens in a game ‘off the equilibrium path’: of what would happen if what is both true and known by the players to be true were instead false. (shrink)

A Virtue Epistemology presents a new approach to some of the oldest and most gripping problems of philosophy, those of knowledge and scepticism. Ernest Sosa argues for two levels of knowledge, the animal and the reflective, each viewed as a distinctive human accomplishment. By adopting a kind of virtue epistemology in line with the tradition found in Aristotle, Aquinas, Reid, and especially Descartes, he presents an account of knowledge which can be used to shed light on different (...) varieties of scepticism, the nature and status of intuitions, and epistemic normativity. (shrink)

This is a unique collection of new and recently-published articles which debate the merits of virtue-theoretic approaches to the core epistemological issues of knowledge and justified belief. The readings all contribute to our understanding of the relative importance, for a theory of justified belief, of the reliability of our cognitive faculties and of the individuals responsibility in gathering and weighing evidence. Highlights of the readings include direct exchanges between leading exponents of this approach and their critics.

Changes in conversationally salient error possibilities, and/or changes in stakes, appear to generate shifts in our judgments regarding the correct application of ‘know’. One prominent response to these shifts is to argue that they arise due to shifts in belief and do not pose a problem for traditional semantic or metaphysical accounts of knowledge. Such doxastic proposals face familiar difficulties with cases where knowledge is ascribed to subjects in different practical or conversational situations from the speaker. Jennifer (...) Nagel has recently offered an ingenious response to these problematic cases—appeal to egocentric bias. Appeal to this kind of bias also has the potential for interesting application in other philosophical arenas, including discussions of epistemic modals. In this paper, I draw on relevant empirical literature to clarify the nature of egocentric bias as it manifests in children and adults, and argue that appeal to egocentric bias is ill-suited to respond to the problem cases for doxastic accounts. Our discussion also has significant impact on the prospects for application of egocentric bias in other arenas. (shrink)

This paper investigates a limitation of the model of belief and knowledge prevailing in mainstream economics, namely the state-space model. Because of its set-theoretic nature, this model has difficulties in capturing the difference between expressions that designate the same object but have different meanings, i.e., expressions with the same extension but different intensions. This limitation generates puzzling results concerning what individuals believe or know about the world as well as what individuals believe or know about what other individuals (...) believe or know about the world. The paper connects these puzzling results to two issues that are relevant for economic theory beyond the state-space model, namely, framing effects and the distinction between the model-maker and agents that appear in the model. Finally, the paper discusses three possible solutions to the limitations of the state-space model, and concludes that the two alternatives that appear practicable also have significant drawbacks. (shrink)

Book synopsis: The aim of this collection of papers is to present different philosophical perspectives on the mental, exploring questions about how to define, explain and understand the various kinds of mental acts and processes, and exhibiting, in particular, the contrast between naturalistic and non-naturalistic approaches. There is a long tradition in philosophy of clarifying concepts such as those of thinking, knowing and believing. The task of clarifying these concepts has become ever more important with the major developments that have (...) taken place over the last century in the human and cognitive sciences - most notably, psychology, sociology, linguistics, neurophysiology, AI, and cognitive science itself. In all these sciences, there is a need to delineate the domain of the mental and to elucidate the key concepts and underlying assumptions. This need is widely recognized, but approaches and answers vary significantly. Some stress the representational features involved in most of our mental processes, others the inferential dimension; some stress the necessity of using empirical data, others the need to refine ideas before pursuing and drawing on empirical research. The papers collected in this volume are grouped into four parts, on language and thought, on knowledge, belief and action, on intentionality, and on naturalism. The volume will be welcomed by all those engaged and interested in debates about the mental in philosophy and the human and cognitive sciences. (shrink)

In this paper, I develop an algorithmic impossible-worlds model of belief and knowledge that provides a middle ground between models that entail that everyone is logically omniscient and those that are compatible with even the most egregious kinds of logical incompetence. In outline, the model entails that an agent believes (knows) φ just in case she can easily (and correctly) compute that φ is true and thus has the capacity to make her actions depend on whether φ. The (...) model thereby captures the standard view that belief and knowledge ground are constitutively connected to dispositions to act. As I explain, the model improves upon standard algorithmic models developed by Parikh, Halpern, Moses, Vardi, and Duc, among other ways, by integrating them into an impossible-worlds framework. The model also avoids some important disadvantages of recent candidate middle-ground models based on dynamic epistemic logic or step logic, and it can subsume their most important advantages. (shrink)

There has been a great deal of interaction among game theorists, philosophers and logicians in certain foundational problems concerning rationality, the formalization of knowledge and practical reasoning, and models of learning and deliberation. This volume brings together the work of some of the pre-eminent figures in their respective disciplines, all of whom are engaged in research at the forefront of their fields. Together they offer a conspectus of the interaction of game theory, logic and epistemology in the formal models (...) of knowledge, belief, deliberation and learning, and in the relationship between Bayesian decision theory and game theory, as well as between bounded rationality and computational complexity. (shrink)

Is belief in God reasonable? Richard Dawkins is right to say that traditional arguments for the existence of God are flawed; but so is his own disproof of the existence of God, and there are gaps in neo-Darwinian explanations of the origin of language, of life, and of the universe. The rational response is neither theism nor atheism but agnosticism. Faith in a creed is no virtue, but mere belief in God may be reasonable even if false.