In recent decades, epistemology has witnessed the development and growth of externalist theories of knowledge and justification. Critics of externalism have focused a bright spotlight on this approach and judged it unsuitable for realizing the true and original goals of epistemology. Their own favored approach, internalism, is defended as a preferable approach to the traditional concept of epistemic justification. I shall turn the spotlight toward internalism and its most prominent rationale, revealing fundamental problems at the core of internalism and challenging (...) the viability of its most popular rationale. Although particular internalist theories such as (internalist) foundationalism and coherentism will occasionally be discussed, those specific theories are not my primary concern. The principal concern is rather the general architecture of internalism, and the attempt to justify this architecture by appeal to a certain conception of what justification consists in. (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)

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)