Lackey, Jennfer. Testimony and the Infant/Child Objection
2005, Philosophical Studies 126(2): 163-190.
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Added by: Jie GaoAbstract: One of the central problems afflicting reductionism in the epistemology of testimony is the apparent fact that infants and small children are not cognitively capable of having the inductively based positive reasons required by this view. Since non-reductionism does not impose a requirement of this sort, it is thought to avoid this problem and is therefore taken to have a significant advantage over reductionism. In this paper, however, I argue that if this objection undermines reductionism, then a variant of it similarly undermines non-reductionism. Thus, considerations about the cognitive capacities of infants and small children do not effectively discriminate between these two competing theories of testimonial justification.
Lackey, Jennfer. Acting on Knowledge
2010, Philosophical Perspectives 24 (1): 361-382.
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Added by: Jie GaoSummary: This paper argues that there are various kinds of cases in which a subject clearly knows that p, yet it is not epistemically appropriate for her to use the proposition that p in practical reasoning, to act as if p, or act on p. Knowledge is not, therefore, always sufficient for epistemically justifying practical rationality, unlike what says in the sufficiency condition of the knowledge norm of practical reasoning. In addition, it offers a diagnosis of what is salient in the above cases and suggests a broad feature that needs to be accounted for in any view of the norm governing practical rationality.
Comment: This is a nice paper arguing against the knowledge norm of practical reasoning, in particular the sufficiency condition. It is suitable for teaching on epistemic norms and pragmatic encroachement in a upper-level undergraduate course on epistemology.
Lackey, Jennfer. Testimony: Acquiring Knowledge from Others
2010, Goldman, Alvin and Whitcomb, Dennis (eds.), Social Epistemology: Essential Readings. Oxford: Oxford University Press. 71-91
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Added by: Jie GaoIntroduction: Virtually everything we know depends in some way or other on the testimony of others - what we eat, how things work, where we go, even who we are. We do not, after all, perceive firsthand the preparation of the ingredients in many of our meals, or the construction of the devices we use to get around the world, or the layout of our planet, or our own births and familial histories. These are all things we are told. Indeed, subtracting from our lives the information that we possess via testimony leaves them barely recognizable. Scientific discoveries, battles won and lost, geographical developments, customs and traditions of distant lands - all of these facts would be completely lost to us. It is, therefore, no surprise that the importance of testimony, both epistemological and practical, is nearly universally accepted. Less consensus, however, is found when questions about the nature and extent of our dependence on the word of others arise. Is our justified reliance on testimony fundamentally basic, for instance, or is it ultimately reducible to perception, memory, and reason? Is trust, or some related interpersonal feature of our social interaction with one another, essential to the acquisition of beliefs that are testimonially justified? Is testimonial knowledge necessarily acquired through transmission from speaker to hearer? Can testimony generate epistemic features in its own right? These are the questions that will be taken up in this paper and, as will become clear, their answers have far-reaching consequences for how we understand our place in the social world.
Comment: In this excellent introductory paper, Lackey briefly overviews the essential issues about testimony. It is very useful as a general introduction on testimonal knowledge, hence good for junior undergraduate courses on epistemology or social epistemology.
Lackey, Jennfer. Testimonial knowledge and transmission
1999, Philosophical Quarterly 50 (197): 471-490.
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Added by: Jie GaoAbstract: We often talk about knowledge being transmitted via testimony. This suggests a picture of testimony with striking similarities to memory. For instance, it is often assumed that neither is a generative source of knowledge: while the former transmits knowledge from one speaker to another, the latter preserves beliefs from one time to another. These considerations give rise to a stronger and a weaker thesis regarding the transmission of testimonial knowledge. The stronger thesis is that each speaker in a chain of testimonial transmission must know that p in order to pass this knowledge to a hearer. The weaker thesis is that at least the first speaker must know that p in order for any hearer in the chain to come to know that p via testimony. I argue that both theses are false, and hence testimony, unlike memory, can be a generative source of knowledge.
Comment: This is a very good introductory paper on testimonial knowledge and debates between reductivists and non-reductivists. Note that it requires preliminary knowledge on JTB theory.
Lackey, Jennfer. Norms of Assertion
2007, Noûs 41 (4): 594–626.
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Added by: Jie GaoIntroduction: I shall argue that the Knowledge Norm of Assertion is false. In particular, I shall show that there are cases in which a speaker asserts that p in the absence of knowing that p without being subject to criticism in any relevant sense, thereby showing that knowledge cannot be what is required for proper asser- tion. I shall then develop and defend an alternative norm of assertion - what I shall call the Reasonable to Believe Norm of Assertion - that not only avoids the problems afflicting the Knowledge Norm of Assertion but also more fully and co- herently accommodates our general intuitions about both asserters and their assertions.
Comment: This is an important paper on the norm of assertion, in which Lackey criticises the knowledge norm and argues for a reasonable-to-believe norm. It is a must-have teaching material for upper level undergraduate courses on epistemology or philosophy of language, sessions on assertion or epistemic norms.
Lackey, Jennifer. Knowing from Testimony
2006, Philosophy Compass 1(5): 432-448.
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Added by: Ben McGorrigan, Contributed by: Wayne RiggsAbstract: Testimony is a vital and ubiquitous source of knowledge. Were we to refrain from accepting the testimony of others, our lives would be impoverished in startling and debilitating ways. Despite the vital role that testimony occupies in our epistemic lives, traditional epistemological theories have focused primarily on other sources, such as sense perception, memory, and reason, with relatively little attention devoted specifically to testimony. In recent years, however, the epistemic significance of testimony has been more fully appreciated. I shall here focus on two questions that have received the most attention in recent work in the epistemology of testimony. First, is testimonial knowledge acquired only by being transmitted from speaker to hearer? Second, must a hearer have positive reasons to justifiedly accept a speaker's testimony?
Comment: This text will serve as a good introduction to the epistemology of testimony. Aside from its relevance in teaching Epistemology, it will also be of use in teaching Aesthetics where Aesthetic Testimony has become a key topic of debate. Lackey provides various thought experiments which can aid the reader in understanding when knowledge seems to be acquired via testimony, and how this seems to work.
Lackey, Jennifer. Why We Don’t Deserve Credit for Everything We Know
2009, Synthese 158(3): 345-361.
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Added by: Jie GaoAbstract: A view of knowledge - what I call the Deserving Credit View of Knowledge (DCVK) - found in much of the recent epistemological literature, particularly among so-called virtue epistemologists, centres around the thesis that knowledge is something for which a subject deserves credit. Indeed, this is said to be the central difference between those true beliefs that qualify as knowledge and those that are true merely by luck - the former, unlike the latter, are achievements of the subject and are thereby creditable to her. Moreover, it is often further noted that deserving credit is what explains the additional value that knowledge has over merely lucky true belief. In this paper, I argue that the general conception of knowledge found in the DCVK is fundamentally incorrect. In particular, I show that deserving credit cannot be what distinguishes knowledge from merely lucky true belief since knowledge is not something for which a subject always deserves credit.
Comment: This is an important paper in the literature on virtue epistemology. It argues that one formulation of the virtue epistemology in terms of the Credit View is very problematic. It is suitable for both lower- and upper-division of undergraduate courses on epistemology.
Lackey, Jennifer. Introduction: Perspectives on testimony
2007, Episteme 4 (3):233-237.
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Added by: Chris Blake-Turner, Contributed by: Wayne RiggsAbstract: Almost everything we know depends in some way on testimony. Without the ability to learn from others, it would be virtually impossible for any individual person to know much beyond what has come within the scope of her immediate perceptual environment. The fruits of science, history, geography - all of these would be beyond our grasp, as would much of what we know about ourselves. We do not, after all, perceive that we belong to one family rather than to another - this is something we are told. Despite the overwhelming importance of testimony, it has been neglected to a large extent in the philosophical tradition. Arguably, this has resulted from a general sense that our other cognitive faculties, such as perception, are more basic and therefore ought to be the primary focus of our investigations. In recent years, however, the idea that testimony is of secondary importance has been forcefully challenged, and new ways of thinking of testimony have been fruitfully explored by a number of philosophers. The present issue of Episteme aims to build on this body of work and to broaden it by incorporating insights from three different groups of people: philosophers who have already done considerable work in social epistemology, philosophers who are for the first time applying their work in other areas of epistemology to testimony, and psychologists who study the development of our ability to learn from others. The papers in this issue, with one exception, were delivered at the fourth annual Episteme conference, held at Rutgers University in June, 2007
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Lackey, Jennifer. It takes two to tango: beyond reductionism and non-reductionism in the epistemology of testimony
2006, In Jennifer Lackey & Ernest Sosa (eds.), The Epistemology of Testimony. Oxford University Press. pp. 160--89.
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Added by: Chris Blake-Turner, Contributed by: Wayne RiggsAbstract: How precisely do we successfully acquire justified belief from either the spoken or written word of others? This question is at the center of the epistemology of testimony, and the current philosophical literature contains only two general options for answering it: reductionism and non-reductionism. While reductionists argue that testimonial justification is reducible to sense perception, memory, and inductive inference, non-reductionists maintain that testimony is just as basic epistemically as these other sources. This chapter challenges the current terms of the debate by, first, showing that there are serious problems afflicting both reductionism and non-reductionism and by, second, suggesting an alternate, hybrid, view of testimonial justification.
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Lackey, Jennifer. The Epistemology of Testimony: Introduction
2006, In Jennifer Lackey & Ernest Sosa (eds.), The Epistemology of Testimony. Oxford University Press. pp. 1-24.
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Added by: Chris Blake-Turner, Contributed by: Wayne RiggsIntroduction: Our dependence on testimony is as deep as it is ubiquitous. We rely on the reports of others for our beliefs about the food we eat, the medicine we ingest, the products we buy, the geography of the world, discoveries in science, historical information, and many other areas that play crucial roles in both our practical and our intellectual lives. Even many of our most important beliefs about ourselves were learned at an earlier time from our parents and caretakers, such as the date of our birth, the identity of our parents, our ethnic backgrounds, and so on. Were we to refrain from accepting the testimony of others, our lives would be impoverished in startling and debilitating ways.
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Comment: It is a good paper in terms of elucidating the debates between reductionism and non-reductionism. In particular, it critically examines a central problem for reductionism. Suitable as a further reading for teachings on testimony in a course on epistemology.