The epistemic regress problem is about the possibility of having beliefs that are based on evidence. The problem of the criterion is about the possibility of having beliefs that are based on general standards for distinguishing what is true from what is false. These problems are similar. Each is constituted by a set of propositions about epistemically valuable relational properties—being supported by evidence and being authorized by a criterion of truth—that are individually plausible but jointly inconsistent, a paradox. The propositions (...) that constitute one problem have the same forms as the propositions that constitute the other. In particular, each problem turns on the claim that a belief can have a valuable relational property only by means of an endless regress and that this requirement cannot be satisfied. Finally, since evidence and criteria are kinds of reasons, each problem is about the possibility of having beliefs that are based on reasons. (shrink)

The best extant statement of the epistemic regress problem makes assumptions that are too strong. An improved version assumes only that that reasons require support, that no proposition is supported only by endless regresses of reasons, and that some proposition is supported. These assumptions are individually plausible but jointly inconsistent. Attempts to explain support by means of unconceptualized sensations, contextually immunized propositions, endless regresses, and holistic coherence all require either additional reasons or an external condition on support that is arbitrary (...) from the believer's own point of view. (shrink)

One way to solve the epistemic regress problem would be to show that we can acquire justification by means of an infinite regress. This is infinitism. This view has not been popular, but Peter Klein has developed a sophisticated version of infinitism according to which all justified beliefs depend upon an infinite regress of reasons. Klein's argument for infinitism is unpersuasive, but he successfully responds to the most compelling extant objections to the view. A key component of his position is (...) his claim that an infinite regress is necessary, but not sufficient, for justified belief. This enables infinitism to avoid a number of otherwise compelling objections. However, it commits infinitism to the existence of an additional feature of reasons that is necessary and, together with the regress condition, sufficient for justified belief. The trouble with infinitism is that any such condition could account for the connection between justification and truth only by undermining the rationale for the regress condition itself. (shrink)

There are important similarities between the epistemic regress problem and the problem of the criterion. Each turns on plausible principles stating that epistemic reasons must be supported by epistemic reasons but that having reasons is impossible if that requires having endless regresses of reasons. These principles are incompatible with the possibility of reasons, so each problem is a paradox. Whether there can be an antiskeptical solution to these paradoxes depends upon the kinds of reasons that we need in order to (...) attain our epistemic goals. This article explains the problems and considers the ways in which two different conceptions of human flourishing support the value of different kinds of reasons. One conception requires reasons that allow an easy solution to these paradoxes. The other—rational autonomy—requires reasons that depend upon endless regresses. So we cannot have the kinds of fully transparent reasons required for rational autonomy. (shrink)

I give an interpretation according to which Meno’s paradox is an epistemic regress problem. The paradox is an argument for skepticism assuming that (1) acquired knowledge about an object X requires prior knowledge about what X is and (2) any knowledge must be acquired. (1) is a principle about having reasons for knowledge and about the epistemic priority of knowledge about what X is. (1) and (2) jointly imply a regress-generating principle which implies that knowledge always requires an infinite sequence (...) of known reasons. Plato’s response to the problem is to accept (1) but reject (2): some knowledge is innate. He argues from this to the conclusion that the soul is immortal. This argument can be understood as a response to an Eleatic problem about the possibility of coming into being that turns on a regress-generating causal principle analogous to the regress-generating principle presupposed by Meno’s paradox. (shrink)

An argument whose conclusion C is essential evidence for one of its premises can provide its target audience with justification for believing C. This is possible because we can enhance our justification for believing a proposition C by integrating it into an explanatory network of beliefs for which C itself provides essential evidence. I argue for this in light of relevant features of doxastic circularity, epistemic circularity, and explanatory inferences. Finally, I confirm my argument with an example and respond to (...) objections. (shrink)

Although it has been largely neglected in contemporary philosophy , the problem of the criterion raises questions which must be addressed by any complete account of knowledge . But the problem of the criterion suffers not onl.

The problem of the criterion says that we can know a proposition only if we first know a criterion of truth and vice versa, hence, we cannot know any proposition or any criterion of truth. The epistemic levels response says that since knowledge does not require knowledge about knowledge, we can know a proposition without knowing a criterion of truth. This response (advocated by Chisholm and Van Cleve) presupposes that criteria of truth are epistemic principles. In general, however, criteria of (...) truth are not epistemic principles, so the epistemic levels response to the problem of the criterion fails. (shrink)

Deductive and inductive logic confront this skeptical challenge: we can justify any logical principle only by means of an argument but we can acquire justification by means of an argument only if we are already justified in believing some logical principle. We could solve this problem if probative arguments do not require justified belief in their corresponding conditionals. For if not, then inferential justification would not require justified belief in any logical principle. So even arguments whose corresponding conditionals are epistemically (...) dependent upon their conclusions--epistemically self-supporting arguments--need not be viciously circular. R. B. Braithwaite and James Van Cleve use internalist and externalist versions of this strategy in their proposed solutions to the problem of induction. Unfortunately, their arguments for self-support are unsound and any theory of inferential justification that does not require justified belief in the corresponding conditionals of justification-affording arguments is unacceptably arbitrary. So self-supporting arguments cannot be justification-creating. (shrink)

Deductive and inductive logic confront this skeptical challenge: we can justify any logical principle only by means of an argument but we can acquire justification by means of an argument only if we are already justified in believing some logical principle. We could solve this problem if probative arguments do not require justified belief in their corresponding conditionals. For if not, then inferential justification would not require justified belief in any logical principle. So even arguments whose corresponding conditionals are epistemically (...) dependent upon their conclusions—epistemically self‐supporting arguments—need not be viciously circular. R.B. Braithwaite and James Van Cleve use internalist and externalist versions of this strategy in their proposed solutions to the problem of induction. Unfortunately, their arguments for self‐support are unsound and any theory of inferential justification that does not require justified belief in the corresponding conditionals of justification‐affording arguments is unacceptably arbitrary. So self‐supporting arguments cannot be justification‐creating. (shrink)

Abstract Meeting the eliminativist challenge to folk psychology requires showing that beliefs have explanatory virtues unlikely to be duplicated by non?cognitive accounts of behavior. The explanatory power of beliefs is rooted in their intentionality. That beliefs have a distinctive kind of intentionality is shown by the distinctive intensionality of the sentences which report them. Contrary to Fodor, the fundamental explanatory virtues of beliefs are not to be found in their capacity to make causally inactive properties relevant to the explanation of (...) behavior. Rather, the distinctive intentionality of beliefs provides the best explanation of the fact that fully intelligent behavior displays a selectivity of response to properties of the perceptual environment. (shrink)

Paul Churchland argues that the continuity of human intellectual development provides evidence against folk psychology and traditional epistemology, since these latter find purchase only at the later stages of intellectual development. He supports this contention with an analogy from the history of thermodynamics. Careful attention to the thermodynamics analogy shows that the argument from continuity does not provide independent support for eliminative materialism. The argument also rests upon claims about continuity which do not support the claim that the continuity of (...) intellectual development is evidence for the elimination of folk psychology. Traditional epistemology and folk psychology should not yet be abandoned. (shrink)

Almeder considers three versions of naturalism. The most radical claims that legitimate questions can only be answered by science, so epistemology should be replaced by scientific psychology. Moderate naturalism holds that there is a legitimate role for philosophy and for science in epistemology: philosophy tells us what knowledge is, but since it is reliably-produced true belief, science tells us how much we can have. “Harmless” naturalism holds that philosophy can provide us with non-scientific knowledge that is nevertheless subject to indirect (...) empirical confirmation. Almeder rejects the first two versions of naturalism and defends the last. The results are unsatisfactory. Limitations of space compel me to focus only on some particularly crucial aspects of Almeder’s position. (shrink)

Andrew Cling presents a new version of the epistemic regress problem, and argues that intuitionist foundationalism, social contextualism, holistic coherentism, and infinitism fail to solve it. Cling’s discussion is quite instructive, and deserving of careful consideration. But, I argue, Cling’s discussion is not in all respects decisive. I argue that Cling’s dilemma argument against holistic coherentism fails.

The first edition was awarded the '2005 Textbook Award of the Association of University Professors of Management (Verband der Hochschullehrer fur ...

How should politicians act? When should they try to lead public opinion and when should they follow it? Should politicians see themselves as experts, whose opinions have greater authority than other people's, or as participants in a common dialogue with ordinary citizens? When do virtues like toleration and willingness to compromise deteriorate into moral weakness? In this innovative work, Andrew Sabl answers these questions by exploring what a democratic polity needs from its leaders. He concludes that there are systematic, (...) principled reasons for the holders of divergent political offices or roles to act differently. Sabl argues that the morally committed civil rights activist, the elected representative pursuing legislative results, and the grassroots organizer determined to empower ordinary citizens all have crucial democratic functions. But they are different functions, calling for different practices and different qualities of political character. To make this case, he draws on political theory, moral philosophy, leadership studies, and biographical examples ranging from Everett Dirksen to Ella Baker, Frances Willard to Stokely Carmichael, Martin Luther King Jr. to Joe McCarthy. Ruling Passions asks democratic theorists to pay more attention to the "governing pluralism" that characterizes a diverse, complex democracy. It challenges moral philosophy to adapt its prescriptions to the real requirements of democratic life, to pay more attention to the virtues of political compromise and the varieties of human character. And it calls on all democratic citizens to appreciate "democratic constancy": the limited yet serious standard of ethical character to which imperfect democratic citizens may rightly hold their leaders--and themselves. (shrink)

We all face death, but how many of us are actually ready for it? Whether our own death or that of a loved one comes first, how prepared are we, spiritually or practically? In Preparing to Die, Andrew Holecek presents a wide array of resources to help the reader address this unfinished business. Part One shows how to prepare one's mind and how to help others, before, during, and after death. The author explains how spiritual preparation for death can (...) completely transform our relationship to the end of life, dissolving our fear and helping us to feel open and receptive to letting go in the dying process. Daily meditation practices, the stages of dying and how to work with them, and after-death experiences are all detailed in ways that will be particularly helpful for those with an interest in Tibetan Buddhism and in Tibetan approaches to conscious dying. Part Two addresses the practical issues that surround death. Experts in grief, hospice, the funeral business, and the medical and legal issues of death contribute chapters to prepare the reader for every practical concern, including advance directives, green funerals, the signs of death, warnings about the funeral industry, the stages of grief, and practical care for the dying. Part Three contains heart-advice from twenty of the best-known Tibetan Buddhist masters now teaching in the West. These brief interviews provide words of solace and wisdom to guide the dying and their caregivers during this challenging time. Preparing to Die is for anyone interested in learning how to prepare for death from a Buddhist perspective, both spiritually and practically. It is also for those who want to learn how to help someone else who is dying, both during the time of illness and death as well as after death. (shrink)

This paper argues that the dominance of linear models has led many sociologists to construe the social world in terms of a "general linear reality." This reality assumes (1) that the social world consists of fixed entities with variable attributes, (2) that cause cannot flow from "small" to "large" attributes/events, (3) that causal attributes have only one causal pattern at once, (4) that the sequence of events does not influence their outcome, (5) that the "careers" of entities are largely independent, (...) and (6) that causal attributes are generally independent of each other. The paper discusses examples of these assumptions in empirical work, consider standard and new methods addressing them, and briefly explores alternative models for reality that employ demographic, sequential, and network perspectives. (shrink)

A Physicalist Manifesto is a full treatment of the comprehensive physicalist view that, in some important sense, everything is physical. Andrew Melnyk argues that the view is best formulated by appeal to a carefully worked-out notion of realization, rather than supervenience; that, so formulated, physicalism must be importantly reductionist; that it need not repudiate causal and explanatory claims framed in non-physical language; and that it has the a posteriori epistemic status of a broad-scope scientific hypothesis. Two concluding chapters argue (...) in detail that contemporary science provides no significant empirical evidence against physicalism and some considerable evidence for it. Written in a brisk, candid and exceptionally clear style, this 2003 book should appeal to professionals and students in philosophy of mind, metaphysics and philosophy of science. (shrink)

This introduction to mathematical logic starts with propositional calculus and first-order logic. Topics covered include syntax, semantics, soundness, completeness, independence, normal forms, vertical paths through negation normal formulas, compactness, Smullyan's Unifying Principle, natural deduction, cut-elimination, semantic tableaux, Skolemization, Herbrand's Theorem, unification, duality, interpolation, and definability. The last three chapters of the book provide an introduction to type theory (higher-order logic). It is shown how various mathematical concepts can be formalized in this very expressive formal language. This expressive notation facilitates proofs (...) of the classical incompleteness and undecidability theorems which are very elegant and easy to understand. The discussion of semantics makes clear the important distinction between standard and nonstandard models which is so important in understanding puzzling phenomena such as the incompleteness theorems and Skolem's Paradox about countable models of set theory. Some of the numerous exercises require giving formal proofs. A computer program called ETPS which is available from the web facilitates doing and checking such exercises. Audience: This volume will be of interest to mathematicians, computer scientists, and philosophers in universities, as well as to computer scientists in industry who wish to use higher-order logic for hardware and software specification and verification. (shrink)

Empirical work has lately confirmed what many philosophers have taken to be true: people are ‘biased toward the future’. All else being equal, we usually prefer to have positive experiences in the future, and negative experiences in the past. According to one hypothesis, the temporal metaphysics hypothesis, future-bias is explained either by our beliefs about temporal metaphysics—the temporal belief hypothesis—or alternatively by our temporal phenomenology—the temporal phenomenology hypothesis. We empirically investigate a particular version of the temporal belief hypothesis according to (...) which future-bias is explained by the belief that time robustly passes. Our results do not match the apparent predictions of this hypothesis, and so provide evidence against it. But we also find that people give more future-biased responses when asked to simulate a belief in robust passage. We take this to suggest that the phenomenology that attends simulation of that belief may be partially responsible for future-bias, and we examine the implications of these results for debates about the rationality of future-bias. (shrink)

Empirical evidence suggests that a majority of people believe that time robustly passes, and that many also report that it seems to them, in experience, as though time robustly passes. Non-dynamists deny that time robustly passes, and many contemporary non-dynamists—deflationists—even deny that it seems to us as though time robustly passes. Non-dynamists, then, face the dual challenge of explaining why people have such beliefs and make such reports about their experiences. Several philosophers have suggested the stable-self explanation, according to which (...) what partly explains one or both of the explananda is that people believe themselves to have a stable persisting self which is imagined either as moving through time, or as being stationary, with time moving around it. This paper empirically investigates this explanation. We found, however, no evidential support for the stable-self explanation, leaving the non-dynamist but also, we will argue, the dynamist, with an extant explanatory challenge. (shrink)

This is a discussion of the state of discussion on pragmatic reasons for belief.

Reported is a study of French & Eng prosody. A list of items was developed which allowed the closest possible transposition between langs (eg, a photograph/une photographie). The items were placed in carrier phrase of the type It's a .../C'est une ... Ss were asked to read each sentence with neutral, emphatic, & surprised intonation. Ss were French & US students (N = 1 each). In a second phase, French-speaking students were asked to repeat the Eng sentences from a written (...) text &, later, from the model of the recording obtained in the first phase. Based on the analysis of these productions, suggestions are made concerning teaching of pronunciation. It was found that many of the French speakers tended to hypercorrect when speaking Eng. Students did not sufficiently lower the accent on unaccented syllables, perhaps as an effect of intonation patterns carried over from French. 13 References. B. Annesser Murray. (shrink)

This book expounds the transcendental realist theory of science and critical naturalist social philosophy that have been developed by Bhaskar and are used by many contemporary social scientists. It defends Bhaskar's view that the possibility and necessity of experiment show that reality is structured and stratified, his use of this idea to develop a non-reductive explanatory account of human sciences, and his notion that to explain social structures can sometimes be to criticize them. After a discussion of the uses of (...) critical realism in controversial areas of social science, Bhaskar's optimism about the prospects of human sciences is criticized. (shrink)

This is the first book-length treatment of the relationship between citizenship and the environment. Andrew Dobson argues that ecological citizenship cannot be fully articulated in terms of the two great traditions of citizenship - liberal and civic republican - with which we have been bequeathed. He develops an original theory of citizenship, which he calls 'post-cosmopolitan', and argues that ecological citizenship is an example and an inflection of it. Ecological citizenship focuses on duties as well as rights, and these (...) duties are owed non-reciprocally, by those individuals and communities who occupy unsustainable amounts of ecological space, to those who occupy too little. (shrink)

This paper argues that underlying social biases are able to affect the processes underlying linguistic interpretation. The result is a series of harms systematically inflicted on marginalised speakers. It is also argued that the role of biases and stereotypes in interpretation complicates Miranda Fricker's proposed solution to epistemic injustice.

This book offers an exciting re-interpretation of Auguste Comte, the founder of French sociology. Following the development of his philosophy of positivism, Comte later focused on the importance of the emotions in his philosophy resulting in the creation of a new religious system, the Religion of Humanity. Andrew Wernick provides the first in-depth critique of Comte's concept of religion and its place in his thinking on politics, sociology and philosophy of science. He places Comte's ideas in the context of (...) post-1789 French political and intellectual history, and of modern philosophy, especially postmodernism. Wernick relates Comte to Marx and Nietzsche as seminal figures of modernity and examines key features of modern and postmodern French social theory, tracing the inherent flaws and disintegration of Comte's system. Wernick offers original and fascinating insights in this rich study which will attract a wide audience from sociologists and philosophers to cultural theorists and historians. (shrink)

Vagueness is the study of concepts that admit borderline cases. The epistemology of vagueness concerns attitudes we should have towards propositions we know to be borderline. On this basis Andrew Bacon develops a new theory of vagueness in which vagueness is fundamentally a property of propositions, explicated in terms of its role in thought.

In this book, Andrew Inkpin considers the disclosive function of language—what language does in revealing or disclosing the world. His approach to this question is a phenomenological one, centering on the need to accord with the various experiences speakers can have of language. With this aim in mind, he develops a phenomenological conception of language with important implications for both the philosophy of language and recent work in the embodied-embedded-enactive-extended tradition of cognitive science. -/- Inkpin draws extensively on the (...) work of Martin Heidegger, Maurice Merleau-Ponty, and Ludwig Wittgenstein, showing how their respective conceptions of language can be combined to complement each other within a unified view. From the early Heidegger, Inkpin extracts a basic framework for a phenomenological conception of language, comprising both a general picture of the role of language and a specific model of the function of words. Merleau-Ponty’s views are used to explicate the generic “pointing out”—or presentational—function of linguistic signs in more detail, while the late Wittgenstein is interpreted as providing versatile means to describe their many pragmatic uses. Having developed this unified phenomenological view, Inkpin explores its broader significance. He argues that it goes beyond the conventional realism/idealism opposition, that it challenges standard assumptions in mainstream post-Fregean philosophy of language, and that it makes a significant contribution not only to the philosophical understanding of language but also to 4e cognitive science. (shrink)

Foucault is often thought to have a great deal to say about the history of madness and sexuality, but little in terms of a general analysis of government and the state.; This volume draws on Foucault's own research to challenge this view, demonstrating the central importance of his work for the study of contemporary politics.; It focuses on liberalism and neo- liberalism, questioning the conceptual opposition of freedom/constraint, state/market and public/private that inform liberal thought.

Philosophical attention to animals can be found in a wide range of texts throughout the history of philosophy, including discussions of animal classification in Aristotle and Ibn Bâjja, of animal rationality in Porphyry, Chrysippus, Aquinas and Kant, of mental continuity and the nature of the mental in Dharmakīrti, Telesio, Conway, Descartes, Cavendish, and Voltaire, of animal self-consciousness in Ibn Sina, of understanding what others think and feel in Zhuangzi, of animal emotion in Śāntarakṣita and Bentham, and of human cultural uniqueness (...) in Xunzi. In recent years, there has been increased attention to animal minds in philosophical discussions across many areas of metaphysics, epistemology, and value theory. Given that nonhuman animals share some biological and psychological features with humans, and that we share community, land, and other resources, consideration of nonhuman animals has much to contribute to our philosophical activities. -/- Contemporary philosophy of animal minds often also engages with the sciences of animal cognition and behavior. The science of comparative cognition is a thriving area of research, complementing the philosophical study in two ways. For one, philosophers of animal cognition can use claims resulting from animal cognition studies as premises in philosophical discussions. For example, Jacob Beck (2012) relies on pigeons’ abilities to compare quantities to argue for nonconceptual content; Sidney Carls-Diamante (forthcoming) appeals to octopus behavior and physiology to defend embodied cognition; Richard Moore (2016a) refers to ape gestural communication to rethink the requirements for intentional communication; Andrew Barron and Colin Klein (2016) appeal to insect cognition research to defend new theories of consciousness; Sarah Vincent, Rebecca Ring, and Kristin Andrews (2019) cite dolphins’ social practices to argue for the existence of norms that do not require metacognition. -/- In addition, philosophers of animal cognition can examine the epistemology and methods used to justify the claims that arise from the science. Research into animal cognition has resulted in surprising claims about animal capacities, such as sociality in garter snakes (Skinner & Miller 2020), tool-use in ants (Maák et al. 2017), mirror self-recognition in fish (Kohda et al. 2019), empathy in rats (Bartal et al. 2011), social learning in fruit flies (Danchin et al. 2018), episodic memory in dogs (Fugazza et al. 2020), addition and subtraction in bees (Howard et al. 2019). How should we evaluate such claims? -/- Some philosophers have argued that animal cognition research is held to a higher standard than human cognition research, and that scientists working with animals are sometimes asked to solve skeptical problems (Halina 2015). Others have challenged scientific assumptions about the relationship between brain size and intelligence, as well as biases against invertebrates (Mikhalevich & Powell 2020). -/- Animal cognition research challenges philosophers to consider that many capacities and behaviors often assumed to require language, sophisticated technological capacities, or legal systems may in fact be had by other animals who lack these properties. In this way, animal cognition research often surprises us by showing that sophisticated-looking activity can be caused through rather simple mechanisms. -/- 1. What is Animal Cognition? 2. Philosophical Assumptions in the Study of Animal Cognition 2.1 Theory-ladenness 2.2 Value-ladenness 2.3 Objectivity 2.4 Simplicity 2.5 Summary 3. Animal Cognition Applied to Philosophy 3.1 The problem of other minds 3.2 The mind-body problem 3.3 Consciousness 3.4 Thought 3.5 Communication 3.6 Social understanding 3.7 The influence of animal cognition on value theory 3.7.1 Ethics 3.7.2 Political theory 3.8 Summary Bibliography Academic Tools Other Internet Resources Related Entries. (shrink)

Virtue theories of argumentation (VTA) emphasize the roles arguers play in the conduct and evaluation of arguments, and lay particular stress on arguers’ acquired dispositions of character, that is, virtues and vices. The inspiration for VTA lies in virtue epistemology and virtue ethics, the latter being a modern revival of Aristotle’s ethics. Aristotle is also, of course, the father of Western logic and argumentation. This paper asks to what degree Aristotle may thereby be claimed as a forefather by VTA.

An important advance in normativity research over the last decade is an increased understanding of the distinction, and difference, between normativity and rationality. Normativity concerns or picks out a broad set of concepts that have in common that they are, put loosely, guiding. For example, consider two commonly used normative concepts: that of a normative reason and that of ought. To have a normative reason to perform some action is for there to be something that counts in favour of performing (...) that action. Likewise with ought, when there is sufficient evidence for something, one ought to believe it (at least under normal circumstances). Not all guidance need be directed towards a specific state or a specific action. Subject to the requirements of normativity, too, are relations. It is commonly believed, for example, that we ought not to hold contradictory beliefs.1 At least some of the requirements that concern relations amongst an agent’s mental states are, or seem, distinctive. Agents who fail to satisfy these requirements are considered, at least to some degree, irrational. On many current views, being irrational is distinct in some way from not being how one ought to be; rationality is a concept distinct from normativity. Much of the literature on this topic over the last decade stems from attempts to capture the characteristic features of the requirements of rationality. Two influential views in particular did much to set the agenda. The first of these two was put forward John Broome.2 His view, the particulars of which I shall discuss in more detail below, is that the requirements of rationality could be expressed using a normative relation, which he calls a ‘normative requirement’. Normative requirements are conditionals governed by an all-thingsconsidered ought. In the case of rationality, the conditional is made up entirely of mental states.. (shrink)

I argue that assertoric content functions as a means for us to track the responsibilities undertaken by communicators, and that distinctively assertoric commitments are distinguished by being generated directly in virtue of the words the speaker uses. This raises two questions: (a) Why are speakers responsible for the content thus generated? (b) Why is it important for us to distinguish between commitments in terms of their manner of generation? I answer the first question by developing a novel responsibility based metasemantics. (...) I answer the second by reference to the conflicting pressures governing the resources we have available for appraising speech. (shrink)

A satisfactory theory of linguistic communication must explain how it is that, through the interpersonal exchange of auditory, visual, and tactile stimuli, the communicative preconditions for the acquisition of testimonial knowledge regularly come to be satisfied. Without an account of knowledge-yielding communication this success condition for linguistic theorizing is left opaque, and we are left with an incomplete understanding of testimony, and communication more generally, as a source of knowledge. This paper argues that knowledge-yielding communication should be modelled on knowledge (...) itself. It is argued that knowledge-yielding communication occurs iff interlocutors coordinate on truth values in a non-lucky and non-deviant way. This account is able to do significant explanatory work: it sheds light on the nature of referential communication, and it allows us to capture, in an informative way, the sense in which interlocutors must entertain similar propositions in order to communicate successfully. (shrink)