This paper argues that a priori justification is, in principle, compatible with naturalism—if the a priori is understood in a way that is free of the inessential properties that, historically, have been associated with the concept. I argue that empirical indefeasibility is essential to the primary notion of the a priori ; however, the indefeasibility requirement should be interpreted in such a way that we can be fallibilist about apriori-justified claims. This fallibilist notion of the a priori accords with the (...) naturalist’s commitment to scientific methodology in that it allows for apriori-justified claims to be sensitive to further conceptual developments and the expansion of evidence. The fallibilist apriorist allows that an a priori claim is revisable in only a purely epistemic sense. This modal claim is weaker than what is required for a revisability thesis to establish empiricism, so fallibilist apriorism represents a distinct position. (shrink)

It is widely held that assertions are partially governed by an epistemic norm. But what is the epistemic condition set out in the norm? Is it knowledge, truth, belief, or something else? In this paper, I defend a view similar to that of Stanley (2008), according to which the relevant epistemic condition is epistemic certainty, where epistemic certainty (but not knowledge) is context-sensitive. I start by distinguishing epistemic certainty, subjective certainty, and knowledge. Then, I explain why it's much more plausible (...) to think that "certain", rather than "know", is context-sensitive. After that, I respond to an important worry raised by Pritchard, according to which the proposed view is too strong to accommodate our current practice of assertion. I then show that the main linguistic and conversational data advanced in the recent literature in favour of the knowledge condition are best explained by the certainty view. Finally, I offer two principled considerations: the certainty view is the only one compatible with three independently plausible claims and it fits very well with the common thought that knowledge does not entail certainty. (shrink)

Although certainty is a fundamental notion in epistemology, it is less studied in contemporary analytic epistemology than other important notions such as knowledge or justification. This paper focuses on Wittgensteinian certainty, according to which the very basic dimension of our epistemic practices, the elements of our world-pictures, are objectively certain, in that we cannot legitimately doubt them. The aim of the paper is to offer the best philosophical way to clarify Wittgensteinian certainty, in a way that is consonant with Wittgenstein's (...) fundamental insights. The paper critiques two alternative proposals for clarifying Wittgensteinian certainty that are philosophically unsatisfying: the rule view and the proposition view. Finally, it instead shows how viewing world-pictures as pictures, in the sense of unclear conceptions, is a more philosophically fruitful approach to understanding world-pictures. (shrink)

Three basic problems in contemporary epistemology are discussed. The first is the conflict between foundationalists and fallibilists. The second is the problem of scepticism. The third is the question of what sort of considerations are relevant to justification. The recent literature is surveyed and some original contributions are offered.

If we agree, along with Arnauld, Berkeley, Descartes, Hume, Leibniz, and others that our occurrent phenomenal states serve as sources of epistemic certainty for us, we need some explanation of this fact. Many contemporary writers, most notably Roderick Chisholm, maintain that there is something special about the phenomenal states themselves that allows our certain knowledge of them. I argue that Chisholm's view is both wrong and irreparable, and that the capacity of humans to know these states with certainty has to (...) do with the contingent cognitive capacities and abilities people have. (shrink)

The sort of knowledge we have with regard to the nature and kind of our own phenomenal states has enjoyed considerable prestige in the history of philosophy. Hume claims that ‘The only existences, of which we are certain, are perceptions, which being immediately present to us by consciousness, command our strongest assent, and are the first foundation of all our conclusions’. In the New Essays, Leibniz remarks that ‘if the immediate inner experience is not certain, we cannot be sure of (...) any truth of fact.’. (shrink)

We seem to enjoy a very special kind of epistemic relation to our own conscious states. In The Conscious Mind (TCM), David Chalmers argues that our phenomenal judgments are fully‐justified or certain because we are acquainted with the phenomenal states that are the objects of such judgments. Chalmers holds that the acquaintance account of phenomenal justification is superior to reliabilist accounts of how it is that our PJs are justified, because it alone can underwrite the certainty of our phenomenal judgments. (...) I argue that Chalmers is unable to sustain this claim. (shrink)