Peter Lipton’s epistemology of testimony.


Introduction
            The basic discourse in epistemology centres on whether or not knowledge is possible. This debate on possibility of knowledge has led many philosophers to propound different theories on the approaches in acquiring knowledge and in affirming its possibility. Among the various ways (sources) human beings can authentically acquire knowledge is through testimony. In fact, every human being likes to authenticate its acquired knowledge through justification by the provision of evidence. That is why, testimony is justifiably considered to be one of the epistemological sources in acclaiming that knowledge is possible. For from testimony we obtain knowledge that could not be obtained from any other sources;[1]since, it is the case that, man accepts the testimony of another man either to affirm or deny what is considered to be true.
            Notably, if all men were to refuse absolutely and in all cases to believe the testimony of others, then society would be an utter impossibility. But testimony apprises us of many facts not falling under our personal observation, whether they happen in our own time or had taken place before we were born. The truth is simply believed upon the authority of the witness giving testimony. Therefore, testimony is the communication of knowledge by a witness.[2]This testimony is not only about a reference to an external person bearing witness to a known fact, but also about a person who experiences a thing, bears witness directly to such an object. 
            Consequently, it is our aim in this paper to critically expose Peter Lipton’s epistemology of testimony. To achieve this, we shall start with clarification of terms; then, present testimony as a source of human knowledge. Afterward, we shall do a criticism of the topic wherein we shall present arguments for and against.
Clarification of Term
Testimony
            Testimony is a testament upon which knowledge is communicated by a witness. To acquire knowledge of P through testimony is to come to know that P on the basis of someone’s saying that P. “Saying that P” must be understood broadly, as including ordinary utterances in daily life, postings by bloggers on their web-logs, articles by journalists. So, when one asks the person next to him/her what time it is, and she tells us, and one thereby comes to know what time it is, that is what it means to have a testimony.[3] For externalists who believe on factual and empirical evidence in claiming their knowledge, testimony is a source of knowledge if and only if it comes from a reliable source.
            The word ‘testimony’ commonly evokes images of the courtroom, where formal testimony is given. Someone sworn in testifies, offering information supposed to represent what the person knows or believes. Often such testimony recounts what was witnessed first-hand, but our testimony can be an expression of what we believe about something we did not witness, such as the implications of a scientific theory or the potentials of human character.[4]
However, internalists will find this unsatisfactory, because suppose one hears someone saying P, and suppose further that person is in fact utterly reliable with regard to the question of whether P is the case or not. One may argue that, testimony is reliable source of knowledge because, personal experiences with testimonial sources which one has accumulated a long track record can be taken as a sign of reliability. However, when we think of the sheer breadth of the knowledge we derive from testimony, one wonders whether one’s personal experiences constitute an evidence base rich enough to justify the attribution of reliability to the totality of the testimonial sources one tends to trust.[5]Here, we use “testimony” broadly, to include all cases in which a person asserts something, and another person hears, reads, or otherwise witnesses the assertion. In this sense, my beliefs that China is in Asia, that the Earth orbits the sun, and that my friend’s birthday is on June 29, are all based on testimony.
Types of Testimony
1.                  Formal testimony:  This is a testimony or attestification given in a court and other recognised structural institutions.
2.                  Informal testimony: This is a casual way of disseminating information. For instance; in telling someone where one was last night, ‘testimony’ is too heavy a word. We could speak of informing, but this is also too narrow, both in suggesting a prepared message (as in ‘yesterday she informed me of her plan to attend’) and in implying that what is conveyed is true. However, we might regard all testimony as a kind of saying. But not all saying, even apart from what is said in fiction is testimony. Someone who says, ‘Ah, what a magnificent tree!’ is expressing a sense of the magnificence of the tree, but not giving testimony that it is magnificent, as where an arborist cites features of shape and colour in supporting a claim that the tree is magnificent and worth the high cost of pruning and feeding.[6]
            However, one may reason why epistemologists neglect this aspect of knowledge source (testimony)? The answer to this question may lie in the traditional views developed by some thinkers as Locke and Hume, about the probative value of testimony. Locke has particularly disparaging words to say about the practice of relying on testimony. He thinks both that other people are a highly unreliable source of information and that, even when they speak truthfully, one cannot gain true knowledge merely by taking someone else’s word. This sort of attitude was largely a reaction to the over-reliance in medieval philosophy on appeals to authority.            
            David Hume is a bit more conciliatory: he regards testimony as simply one form of inductive evidence among others. In his essay “Of Miracles” (mainly a criticism of the belief in miracles), he lays down the basic principles of inductive evidence, including testimonial evidence: the probability one should assign to a given kind of event happening in a given circumstance is proportional to the frequency with which events of that kind have, in one’s past experience, happened in such circumstances. The reason that we are often justified in believing the testimony of others is simply that in the past, when we have been able to check, we have usually found the statements made by others to be true.
            Thomas Reid noticed that, if one had to rely solely upon induction as Hume proposed, one would have little ground for believing the majority of the things that we in fact believe on the testimony of others.[7]In addition, what Hume claim to be inductively is in actual fact sustained by testimony. To make a logical deduction of an event through investigation must in fact base on what others say concerning it. And for Locke who says that we cannot find a reliable testimony because it is devoid of truth, we may ask how a society with moral suspicious can survive without believing in one another’s testimony? Whichever may be the case we cannot avoid or banish testimony in all the human endeavours, but what we could do in our entertainment of testimony we must exercise critical caution in order to avoid deception.  


The Epistemology of Testimony
              Whatever knowledge we claim to have, we get a great number of our beliefs from what others tell us. The epistemology of testimony is about concerns on how we should evaluate these beliefs. Epistemologists inquire into the nature of our belief through testimony by asking these questions: when are the beliefs justified, and why? When do they amount to knowledge, and why?
Lipton’s Idea of Testimonial Knowledge  
            Peter Lipton begins his treatise on testimony by posing a question with an answer thus: Is there anything you know entirely off your own bat? Your knowledge depends pervasively on the word of others.[8]For him, if our only sources of knowledge and justified belief were perception, consciousness, memory, and reason, we would be at best impoverished. We do not even learn to speak or think without the help of others, and much of what we know depends on what they tell us. Children in their first years of life depend almost entirely on others in learning about the world.
            In talking about the dependence of our knowledge and justification on what other people say to us, philosophers have commonly spoken of our reliance on testimony.[9] If perception, memory, consciousness, and reason are our primary individual sources of knowledge then justification, testimony is our primary social source of them. This is why it is a primary concern of social epistemology. Knowledge of events before one was born or outside our immediate neighbourhood is the obvious cases, but our epistemic dependence on testimony goes far deeper than this.
            Mundane belief is such that the earth is round or that one thinks with his/her brain, this almost invariably depends on testimony. Even quite personal facts such as one’s birthday or the identity of one’s biological parents can only be known with the help of others. At least, most of the theories that a scientist accepts are base on what others say. The same goes for almost all the data, since he/she didn’t perform those experiments him/herself. Even in those experiments he/she did perform, he/she relied on testimony hand over fist: just think of all those labels on the chemicals. Even her personal observations may have depended on testimony, if observation is theory laden, since those theories with which it is laden were themselves accepted on testimony.
            Further, Lipton in his work titled Inference to the best explanation propounds that Science depends on judgments of the bearing of evidence on theory. Scientists must judge whether an observation or the result of an experiment supports, disconfirms, or is simply irrelevant to a given hypothesis.[10] Similarly, scientists may judge that, given all the available evidence, a hypothesis ought to be accepted as correct or nearly so, rejected as false, or neither. Occasionally, these evidential judgements can be made on deductive grounds. If an experimental result strictly contradicts a hypothesis, then the truth of the evidence deductively entails the falsity of the hypothesis.[11] In the great majority of cases, however, the connection between evidence and hypothesis is non-demonstrative or inductive. Further, Thomas Reid concludes that it is right in thinking that the beliefs we form by way of credulity or testimony are typically held in the basic way, not by way of inductive or abductive evidence from other things he believes.[12]
Testimony, Knowledge and Justification               
            Testimony is a means of the creation of knowledge. From an individualistic perspective this is obvious, since what we learn from others is new knowledge for us; but it is almost as obvious from a social perspective, as one can see by trying to imagine science without communication. Testimony can give knowledge to its hearers only under certain conditions. If we do not know that the speaker at yesterday’s conference lost his temper, then one cannot come to know it on the basis of his/her attesting to it. This is obvious if one is mistaken and he/she in fact did not lose his temper. Suppose one makes a lucky guess and is right, then one gives himself/herself credit for conjecture information which he/she does not know; but he/she is also lucky to be correct and also do not know that the speaker lost his temper. It is a fluke that one gets it right; it is even more of a fluke that we get it right, since in our contemporary there are misgiving of information, misheard of information, as well as misinterpretation of information which end up distorting the truth of reliable testimony.
            There is a more common defect in testimony that prevents its producing knowledge in the hearer. Imagine that I do not guess at, but incautiously accept, the proposition that the speaker lost his temper, from someone I know often lies about others. Again, I lack knowledge that he lost his temper, even if this time the proposition is true; and again, one cannot know it on the basis of my testimony, which is now ill-grounded in another way. What I do not have, I cannot give it to someone else.[13]
            Even if one is not justified in believing that the speaker lost his temper, I can be credible to you in such a way that you can become justified in believing this on the basis of my attesting it to you. To see this, consider the two facets of testimonial credibility: the sincerity dimension, concerning the attester’s honesty, and second the competence dimension, concerning the attester’s having experience or knowledge sufficient to make it at least likely that if the attester holds a belief of the proposition in question or of closely related ones, then they are true. Surely, you can justifiably regard me as credible on the topic of whether the speaker lost his temper if you have good reason to believe that I am honest, possess normal acuity and memory, and was present and reasonably attentive on the occasion.
            It may seem that there is a further asymmetry: I cannot give you testimony-based knowledge that something is so without having knowledge that it is so, yet I can give you justification without having it. But this conclusion is at best misleading; and it is false if I cannot give what I do not have. In the case of my credible but false testimony that gives you justification for believing what I attesting to, I do not give you justification for believing what I say, that the speaker lost his temper without having that justification. Rather, the way I attest to the proposition together with your background justification regarding me and the circumstances, gives you this justification, independently of whether I have it.[14]
            To justify a testimonial belief, it must depend on individual’s mind and what it accepts to be true. Steven Shapin argues that the decision on what to believe is largely a question of what kind of person to trust and, in the community of the Royal Society, of what he calls a ‘liberal’ notion of truth, because it is a notion that equates truth and consensual belief. He calls the notion ‘liberal’ since it allows that what is true will vary between times and between communities, since consensual belief so varies. He contrasts this relativism with what he calls the ‘restrictive’ notion of truth, which distinguishes between truth and belief, and maintains that what is true does not vary over time or space. The restrictive notion is naturally associated with correspondence theory of truth, which makes what is true depends on the state of a mind-independent reality.[15]
Testimony and Ethics
          We turn from what is true to the good. Steven Shapin encourages us to see the epistemology of testimony as a problem in applied ethics.[16] He argues for testimony from two perspectives: the global and the local. The global arguments are that testimony is by its nature a moral issue, since accepting testimony is a matter of trust, since the social order depends upon it and since giving testimony is tantamount to making a promise that one’s word can be relied upon. Testimony inherits the rich ethical content of placing trust, maintaining the social order and keeping promises. The local arguments concern the criteria of credibility that the seventeenth century gentlemen deployed. These criteria were moral based as they were on the concepts of free action, honour, virtue, and civil conversation.
          The first universal argument is the argument from trust. The institution of testimony is by its nature moral, according to this argument, because the decision whether to accept someone’s testimony is always a question of whether to trust the informant, and judgements of trustworthiness are always moral judgements. On its own, this argument is not persuasive. We may grant that the decision whether to accept someone’s testimony can always be glossed as the decision whether to trust that person, but we do not yet have a reason to suppose that trust in this sense is always a moral issue. It seems rather to be a sense that includes scientists’ decisions whether to trust their theories, instrumentation and data.
          The second global argument is that the institution of testimony is by its nature moral, because it is a prerequisite for the existence of any social order. The premise seems clearly correct: given our ubiquitous dependence on the word of others, no society could exist without testimonial practices. But, one might say, nor could a society exist in the absence of sense perception or reasoning, yet this is hardly sufficient to show that, the epistemology of perception or reasoning reduces to ethics: not every prerequisite for a moral practice or concept is itself moral. If this objection to Shapin’s argument is unconvincing, perhaps it is in part because the point is not just that testimony is a prerequisite for social order, but that it partially constitutes that order. Testimony is itself a social activity in a way that perception and reasoning are not.
            Promising is one of the examples Kant uses to illustrate his first formulation of the Categorical Imperative, according to which we should only act on a maxim that we could will to be a universal law. Conveniently enough, Kant equates false promising with lying, so that his claim is effectively also that we should not lie, since the attempt to universalise a maxim that permitted lies would eliminate the practice of testimony.
Argument in Favour of Testimony
            The fact that testimony comes from a person, rather than an inanimate object, is a reason to be more demanding on testimonial-based beliefs than on perceptual-based beliefs.[17] For the matter testimony “T” can lie, but the matter in our perceptual environment “T” cannot.[18] It is acknowledged on all hands, says that learned prelate, that the authority, either of the scripture or of tradition, is founded merely on the testimony of the Apostles, who were eye-witnesses to those miracles of our Saviour, by which he proved his divine mission.[19]
            Our evidence, then, for, the truth of the Christian religion is less than the evidence for the truth of our senses; because, even in the first authors of our religion, it was no greater; and it is evident it must diminish in passing from them to their disciples; nor can anyone rest such confidence in their testimony, as in the immediate object of his senses.[20] Hume in his statement, points out that our belief in human testimony is based on induction not in any other thing else. However, Hume, in describing the inductive base for a belief in the reliability of testimony, actually uses evidence drawn from other people.[21]
            This can be said in summary that the vast majority (or perhaps even the totality) of what passes for corroboration of testimony itself relies on other testimony. Testimony is a unique source of belief. It is unique in the sense that many of our beliefs have been formed only through accepting testimony. Examples are easy to enumerate; my belief that a major ocean current flows from the Gulf of Mexico to North-West Europe and my belief that there have been two World Wars in this century both depend on testimony. According to Peter J. Graham in his article “Metaphysical Libertarianism and the Epistemology of Testimony” said that the presence of human freedom in testimonial cases is not a significant reason to prefer a conservative approach. Further, if a libertarian approach to human freedom undermines the predictability of human actions, then it would also undermine a conservative approach to testimony. If T’s actions were unpredictable, then S could never have a proper basis on which to believe that T is likely to be honest.[22]So, the environments for testimonial-based beliefs can in fact be as predictable as the environments for perceptual-based beliefs.
            However, freedom that may lead to deception is not distinctive of testimonial-based beliefs. For perceptual-based beliefs can also suffer from the influence of deception. Fake objects, for example, can be the result of deception, and perceptual-based beliefs about fake objects can obviously go awry because of the influence of agency on a perceptual environment.[23]Hence, Christopher Green states that a perceptual analogue to the alien case can be constructed. S is suddenly transported to an unfamiliar perceptual environment and seems to see certain objects outside what looks like a window. But S may have no reason to think that the window is not, for instance, a television screen showing a greatly magnified image of a scene far away, rather than a window opening onto nearby ordinary-sized objects. If S’s perceptual-based beliefs in that scenario do not require positive reasons to believe that his perceptual environment and faculties are functioning normally, then it is not clear why S need such reasons in the testimonial case.[24]
            For S is to be free from deception, it needs to caution what to belief and sensitive to monitor the untrustworthiness of T.[25]Thus, we have similar freedom to reject even perceptual-based beliefs. We can indulge sceptical scenarios, like being a brain in a vat, without much difficulty. Further, there might be beings who accept testimony as readily as we accept the deliverances of our senses. There does not seem to be anything inherent about testimony that makes us freer to reject it.
Argument against Testimony
                As a source of knowledge, testimony is comparable to perception and memory. Reductive responses claim that testimonial beliefs are justified only because and insofar as reasons were possessed for accepting whatever testimony caused their formation. The justification of testimonial beliefs thereby reduces to the justification for beliefs formed by other sources.[26]In justifying the epistemic subject’s trust in testimony the reductionist cannot cite other people’s perception and memory. For example; the reductionist cannot cite perception and memory of the person who provides the testimony. Only the epistemic subject’s own perception and memory are relevant to the justification of her trust in testimony.[27]
            Alvin Plantinga in his argument against testimonial-based belief states that by analogy; “I am five years old; my father tells me that Australia is a large country and occupies an entire continent all by itself. I do not say to myself, “My father says thus and so; most of the time when I checked what my father says, it turns out to be true; and this leads me to conclude saying probably this is; so probably Australia is a very large country that occupies an entire continent by itself.”[28] If one could reason this way, it shows that in certain specialised circumstances we do reason that way. But typically we do not. Typically we just believe what we are told, and believe it in the basic way. I say one could reason in the inductive way to what testimony testifies to; but of course one could not have reasoned thus in coming to the first beliefs one held on the basis of testimony.[29]
            Another argument against demands on testimonial-based beliefs is that, even if those demands might be able to be satisfied by those who are particularly careful in considering earlier cases of confirmation, it is improper to place too many intellectual demands on people’s everyday beliefs. Graham puts it this way: “Even if the reduction is possible, requiring it is overly demanding; the requirement to reduce hyper-intellectualises testimonial justification.” Young children, for instance, lack the intellectual capacity to consider complicated issues regarding the reliability of their parents or others who give them testimonial-based beliefs, and so it is improper to place epistemic demands on them.[30]
            However, Jennifer Lackey restated Graham argument against the infants and young children objection by considering whether a similar problem could afflict any approach to testimonial-based justification which includes a non-defeater condition.[31] For her, no one can suggest that testimonial-based justification is indefeasible; rather, S is only justified on the basis of T’s testimony if S lacks a defeater for her belief that p. For instance, if T tells S that p, but S already believes that q and if q then ~p, she cannot just add the belief that p, rendering her beliefs inconsistent. Therefore defeaters can be standardly divided into doxastic, normative, and factual defeaters.[32]
            Doxastic defeaters are like those in the case we just considered: other beliefs that S has that make it improper for her to believe p, or to accept testimony that p from T. Normative defeaters are other beliefs that S would have, if she performed her epistemic duties. Factual defeaters defeat S’s justification in virtue of being true. The standard example is the fake barn; if S just happens to see the one real barn amidst a country side full of fakes, S’s belief about the barn is not justified, or at least does not count as knowledge. Similarly, if S just happens to meet T, the one reliable testifier in a sea of unreliable ones, then she has a factual defeater. Some epistemologists, though, are fake-barn-case sceptics, and think that these cases are not obviously cases where justification or knowledge fails.
            Lackey’s argument is that if young children, or animals, are not capable of satisfying a positive-reason demand on testimonial-based beliefs because they are not capable of appreciating reasons, then for the same reason they are likewise not capable of satisfying a no-defeater condition, either regarding normative or doxastic defeaters. Those who are not capable of understanding a reason for a belief presumably also cannot understand either a conflict in belief, as required by an appreciation of doxastic defeaters.
Conclusion
            So far, we have seen that, testimony, like memory, is an extremely pervasive source of knowledge that has traditionally been neglected by epistemologists. The relegation of testimony by the epistemologist could not abjectly reduce the importance and indefeasibility of testimony in the acquisition of knowledge. Before any formal analysis of human cognitional process, it is taken that testimony is the first hand information through which we come to know reality and things around us.
            Again, testimony occupies social and moral role in the society. We rightly stated above that testimony is indispensable either in the court or in the family even to the large extend in the community. Before anyone on its own make an inquiry concerning certain thing, that thing in one way or another has been said by another person, which means that is not the case that we are the originator of information about a particular thing. However, we are able to understand that since testimony depends on people it could be faulty, because human being is capable of lying. Therefore to children who rely so much on testimony are misguided, since they do not have the critical mind to discern what they are told.
            Further, Testimony also plays a crucial role in science, whereby scientific development depends on other scientist testimonies who have constructed theories.[33] This statement suggest that testimony as the case is cannot be avoided or marginalise in the formation and dissemination of knowledge. For every field of endeavour there are first people who begin it and further relate the experience and understanding to the coming one. And in the same way the young one will necessarily need to depend on the older or people before them for information concerning a particular thing. Only that the information gotten from people needed a further purification through the use of intellectual light.
             










Bibliography

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___________Epistemology: Contemporary Reading.Edited by Michael Huemer. London: Routledge, 2002.

Coady, C. A. J. Testimony: A Philosophical Study. New York: Clarendon Press, 1992.

Cunningham, F. Walter.Note on Epistemology. New York: Fordham University Press, 1930.

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Faulkner, Paul. “The social character of testimonial knowledge.”Journal of philosophy, vol. 97 (2000), pp.581-601.

___________ “David Hume’s Reductionist Epistemology of Testimony.” In Pacific Philosophical Quarterly, vol. 79, no. 4, (December 1998), pp. 302-313.

Goldberg, Sanford, and Henderson, David.“Monitoring and Anti-Reductionism in the Epistemology of Testimony.”Philosophy and Phenomenological Research, vol. 72 (2005), pp. 600-17.
Graham, J. Peter. “Metaphysical Libertarianism and the Epistemology of Testimony.”American Philosophical Quarterly, vol. 41 (2004), pp. 37-50.
_____________. “Liberal Fundamentalism and Its Rivals.” in Lackey and Sosa 2006, p. 100.

Green, Christopher R. “The Epistemic Parity of Testimony, Memory, and Perception.” Ph.D. dissertation, University of Notre Dame, (2006), p.82.

Hume, David. An Enquiry Concerning Human Understanding and Other Writings.Edited by Stephen Buckle. New York: Cambridge University Press, 2007.

Lackey, Jennifer. “Testimony and the Infant/Child Objection.”Philosophical Studies, vol. 126 (2005), pp.163-90.

______________. “The Nature of Testimony.”Pacific Philosophical Quarterly, vol. 87 (2006), p. 177- 197.

Lipton, Peter.“The Epistemology of Testimony.”In Study in History and Philosophy of science. Vol. 29, No. 1 (1998), pp. 1-31

___________.Inference to the Best Explanation. London: Routledge, 1991.

­­­­­­­­­­­­____________.“Inference to the Best Explanation.”A Companion to the Philosophy of Science.Edited by H. W. Newton-Smith. New York: Blackwell, 2000.

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Reid, Thomas.An Inquiry into the Human Mind on the Principles of Common Sense. Indianapolis: Hackett Publishing Company, 1975.

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[1] Walter F. Cunningham, Note on Epistemology (New York: Fordham University Press, 1930), pp.143-144.
[2] Walter F. Cunningham, Note on Epistemology, p. 144.
[3]Joseph T. Ekong, “A Critique of Edmund Gettier’s Account of Knowledge”, in ChiedozieOkoro (ed.), Essays in Epistemology and Philosophy of History (Nigeria: Soladem Printers Limited, 2008), p.
[4] Robert Audi, Epistemology: A Contemporary Introduction to the Theory of Knowledge, 2nd edition (New York: Routledge, 2003), p. 132.
[5]Joseph T. Ekong, “A Critique of Edmund Gettier’s Account of Knowledge”, in ChiedozieOkoro (ed.), Essays in Epistemology and Philosophy of History (Nigeria: Soladem Printers Limited, 2008), p.
[6] Robert Audi, Epistemology: A Contemporary Introduction to the Theory of Knowledge, pp. 132-133.
[7] Thomas Reid, An Inquiry into the Human Mind on the Principles of Common Sense (Indianapolis: Hackett Publishing Company, 1975), chapter 2, art. 2.
[8] Peter Lipton, “The Epistemology of Testimony” in Study in History and Philosophy of science, Vol. 29, No. 1 (1998), pp. 1-31.
[9] Robert Audi, Epistemology: A Contemporary Introduction to the Theory of Knowledge, p. 132.
[10] Peter Lipton,  Inference to the Best Explanation (London: Routledge, 1991), p.15.
[11] Peter Lipton,  “Inference to the Best Explanation” in A Companion to the Philosophy of Science, edited by H. W. Newton-Smith (New York: Blackwell, 2000), pp. 184-193.
[12] Thomas Reid, An Inquiry into the Human Mind on the Principles of Common Sense (Indianapolis: Hackett Publishing Company, 1975), p.24
[13] Robert Audi, Epistemology: A Contemporary Introduction to the Theory of Knowledge,pp. 137-138.
[14] Robert Audi, Epistemology: A Contemporary Introduction to the Theory of Knowledge, p. 138.
[15] Steven Shapin, A Social History of Truth (Chicago: University of Chicago Press, 1994), pp. 4-7.
[16] Steven Shapin, A Social History of Truth, p. 7.
[17]Paul Faulkner, “The social character of testimonial knowledge,” Journal of philosophy, vol. 97 (2000), pp.581-601.
[18]Jennifer Lackey, “The Nature of Testimony,” Pacific Philosophical Quarterly, vol. 87 (2006), p. 177- 197.
[19] David Hume, An Enquiry Concerning Human Understanding and Other Writings, edited by Stephen Buckle (New York: Cambridge University Press, 2007), Bk. 10, part 1, art. 1.
[20] David Hume, An Enquiry Concerning Human Understanding and Other Writings, edited by Stephen Buckle (New York: Cambridge University Press, 2007), Bk. 10, part 1, art. 1.
[21] C. A. J. Coady, Testimony: A Philosophical Study (New York: Clarendon Press, 1992), pp. 79-82.
[22] Peter J. Graham, “Metaphysical Libertarianism and the Epistemology of Testimony,” American Philosophical Quarterly, vol. 41 (2004), pp. 37-50.
[23]Christopher R. Green, “The Epistemic Parity of Testimony, Memory, and Perception,” Ph.D. dissertation, University of Notre Dame, (2006), p.82.
[24]Christopher R. Green, “The Epistemic Parity of Testimony, Memory, and Perception,” p. 67.
[25]Sanford Goldberg and David Henderson, “Monitoring and Anti-Reductionism in the Epistemology of Testimony,” Philosophy and Phenomenological Research, vol. 72 (2005), pp. 600-17.
[26]Paul Faulkner, “David Hume’s Reductionist Epistemology of Testimony” in Pacific Philosophical Quarterly, vol. 79, no. 4, (December 1998), pp. 302-313.
[27]TomojiShogenj, “A Defense of Reductionism about Testimonial Justification of Beliefs,”  inNoûs, vol. 40,(2006), pp. 331-46.
[28]Alvin Plantinga, Warrant and Proper Function (New York: Oxford University Press,1993), p. 79.
[29]Alvin Plantinga, Warrant and Proper Function, p. 79.
[30] Peter J. Graham, 2006. “Liberal Fundamentalism and Its Rivals,” in Lackey and Sosa 2006, p. 100.
[31]Jennifer  Lackey, “Testimony and the Infant/Child Objection,” Philosophical Studies, vol. 126 (2005), pp.163-90.
[32]Jennifer  Lackey, “Testimony and the Infant/Child Objection,” Philosophical Studies, pp. 164-65.
[33] Robert Audi, Epistemology: Contemporary Reading, edited by Michael Huemer (London: Routledge, 2002), p. 217.

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