Online research in philosophy

In this paper I assume that we have some intuitive knowledge—i.e. beliefs that amount to knowledge because they are based on intuitions. The question I take up is this: given that some intuition makes a belief based on it amount to knowledge, in virtue of what does it do so? We can ask a similar question about perception. That is: given that some perception makes a belief based on it amount to knowledge, in virtue of what does it do so? A natural idea about perception is that a perception makes a belief amount to knowledge in part by making you sensorily aware of the concrete objects it is about. The analogous idea about intuition is that an intuition makes a belief amount to knowledge in part by making you intellectually aware of the abstract objects it is about. I expand both ideas into fuller accounts of perceptual and intuitive knowledge, explain the main challenge to this sort of account of intuitive knowledge (i.e. the challenge of making sense of intellectual awareness), and develop a response to it.

This is the first book devoted to the work of Ernest Sosa, one of the most influential contemporary epistemologists. In it, a group of distinguished philosophers critically assess Sosa's contribution to debates on virtue epistemology, foundationalism, externalism, and metaphysics. The volume also includes Sosa's own reply to his critics, in which he clarifies and develops the central themes of his philosophy. (publisher, edited).

This paper responds to Ernest Sosa's recent criticism of Richard Fumerton's acquaintance theory. Sosa argues that Fumerton's account of non-inferential justification falls prey to the problem of the speckled hen. I argue that Sosa's criticisms are both illuminating and interesting but that Fumerton's theory can escape the problem of the speckled hen. More generally, the paper shows that an internalist account of non-inferential justification can survive the powerful objections of the Sellarsian dilemma and the problem of the speckled hen.

A. Knowledge and Justification: The nature of epistemic justification and its supervenience.B. Understanding and Validation: Two projects of epistemology, one to understand justification, the other to promote it.

The following four theses all have some intuitive appeal: (I) There are valid norms. (II) A norm is valid only if justified by a valid norm. (III) Justification, on the class of norms, has an irreflexive proper ancestral. (IV) There is no infinite sequence of valid norms each of which is justified by its successor. However, at least one must be false, for (I)--(III) together entail the denial of (IV). There is thus a conflict between intuition and logical possibility. This paper, after distinguishing various conceptions of a norm, of validity and of justification, argues for the following position. (I) is true. (II) is false for legislative justification and true for epistemic justification. (III) is true for legislative and false for epistemic justification. (IV) is true for legislative justification; for epistemic justification (IV) is true or false depending on the conception taken of a norm. Our intuition in favour of (II) must therefore be abandoned where justification is conceived legislatively. Our intuition in favour of (III) must be abandoned, and our intuition in favour of (IV) qualified, where justification is conceived epistemically.

Abstract I agree with Sosa that intuitions are best thought of as attractions to believe a certain proposition merely on the basis of understanding it. However, I don’t think it is constitutive of them that they supply strictly foundational justification for the propositions they justify, though I do believe that it is important that the intuition of a suitable subject be thought of as a prima facie justification for his intuitive judgment, independently of the reliability of his underlying capacities. I also think that we need to be able to explain how mere understanding of a proposition can confer upon us an ability to have reliable intuitions, that we cannot simply take that idea for granted. And that when try to explain that, our best avenue for doing so is to take the intuitions as constituting the understanding of which they are said to be a manifestation.

The regress problem and foundationalism -- Externalist accounts of justification -- In search of coherentism -- Back to foundationalism -- The conceptualization of sensory experience and the problem of the external world -- Knowledge and justification -- Does knowledge have foundation -- Skepticism and the internal/external divide -- A virtue epistemology -- Reply to Sosa -- Reply to Bonjour.

In some recent work, Ernest Sosa rejects the “perceptual model” of rational intuition, according to which intuitive beliefs (e.g., that ) are justified by standing in the appropriate relation to a nondoxastic intellectual experience (a seeming-true, or the like), in much the way that perceptual beliefs are often held to be justified by an appropriate relation to nondoxastic sense experiential states. By extending some of Sosa’s arguments and adding a few of my own, I argue that Sosa is right to reject the perceptual model of intuition, and that we should reject the “perceptual model” of perception as well. Rational intuition and perception should both receive a virtue theoretic (e.g., reliabilist) account, rather than an evidentialist one. To this end, I explicitly argue against the Grounds Principle, which holds that all justified beliefs must be based on some adequate reason, or ground.