Most traditional epistemologists see trust and knowledge as deeply antithetical: we cannot know by trusting in the opinions of others; knowledge must be based on evidence, not mere trust. I argue that this is badly mistaken. Modern knowers cannot be independent and self-reliant. In most disciplines, those who do not trust cannot know. Trust is thus often more epistemically basic than empirical evidence or logical argument, for the evidence and the argument are available only through trust. Finally, since the reliability (...) of testimonial evidence depends on the trustworthiness of the testifier, this implies that knowledge often rests on a foundation of ethics. The rationality of many of our beliefs depends not only on our own character, but on the character of others. (shrink)

David Hume's essay Of Moral Prejudices offers a spirited defense of "all the most endearing sentiments of the hearts, all the most useful biases and instincts, ...

These books will prove valuable to philosophy teachers and their students as well as to other readers who share a general interest in philosophy.

I argue to a conclusion I find at once surprising and intuitive: although many considerations show trust useful, valuable, important, or required, these are not the reasons for which one trusts a particular person to do a particular thing. The reasons for which one trusts a particular person on a particular occasion concern, not the value, importance, or necessity of trust itself, but rather the trustworthiness of the person in question in the matter at hand. In fact, I will suggest (...) that the degree to which you trust a particular person to do a particular thing will vary inversely with the degree to which you must rely, for the motivation or justification of your trusting response, on reasons that concern the importance, or value, or necessity of having such a response. (shrink)

A key debate in the epistemology of testimony concerns when it is reasonable to acquire belief through accepting what a speaker says. This debate has been largely understood as the debate over how much, or little, assessment and monitoring an audience must engage in. When it is understood in this way the debate simply ignores the relationship speaker and audience can have. Interlocutors rarely adopt the detached approach to communication implied by talk of assessment and monitoring. Audiences trust speakers to (...) be truthful and demonstrate certain reactive attitudes if they are not. Trust and the accompanying willingness to these reactive attitudes can then provide speakers with a reason to be trustworthy. So through ignoring interlocutors' engagement with the communicative process, the existing debate misses the possibility that it is an audience's trusting a speaker that makes it reasonable for the audience to accept what the speaker says. (shrink)

Annette Baier sets the title, the genre, and the task of her book from Hume’s essay "Of Moral Prejudices." Rather than arguing from or towards general principles, these essays call upon a wide range of reading, observation, and experience: we are not only meant to be enlightened, but also invited to adopt the reflective habits of mind they exemplify. Like Hume, Baier analyzes and evaluates our attitudes and customs; like him, she finds that our foibles and our strengths are closely (...) linked; and like him, she is both a proponent and a model of good sense. When she is unfairly prejudiced— as she is against what she sees as the harsh and narrow rigors of Kant—she is, with all the bonnehommie of Hume, more ready to tease than to demolish. (shrink)

I present an account of what it is to trust a speaker, and argue that the account can explain the common intuitions which structure the debate about the transmission view of testimony. According to the suggested account, to trust a speaker is to grant her epistemic authority on the asserted proposition, and hence to see her opinion as issuing a second order, preemptive reason for believing the proposition. The account explains the intuitive appeal of the basic principle associated with the (...) transmission view of testimony: the principle according to which, a listener can normally obtain testimonial knowledge that p by believing a speaker who testifies that p only if the speaker knows that p. It also explains a common response to counterexamples to this principle: that these counterexamples do not involve normal cases of testimonial knowledge. (shrink)

Both in ethics and in epistemology one source of scepticism in its contemporary version is the realization, often belated, of the full consequences of atheism. Modern non-moral philosophy looks back to Descartes as its father figure, but disowns the Third Meditation. But if God does not underwrite one's cognitive powers, what does? The largely unknown evolution of them, which is just a version of Descartes’ unreliable demon? “Let us … grant that all that is here said of God is a (...) fable, nevertheless in whatever way they suppose that I have arived at the state of being that I have reached, whether they attribute it to fate or to accident, or make out that it is by a continual succession of antecedents, or by some other method — since to err and deceive oneself is a defect, it is clear that the greater will be the probability of my being so imperfect as to deceive myself ever, as is the Author to whom they assign my being the less powerful”. (shrink)