Wai Lok CHEUNG
ABSTRACT: Stewart Cohen’s epistemic responsibility conception of epistemic justification in illustrating the problem of the new evil demon is assessed through some virtue-theoretic attempts, notably by Timothy Williamson and Clayton Littlejohn, whose accounts provide a good departure point to differentiate epistemic blamelessness through epistemic excusability via exercise of epistemic competence with epistemic recklessness. Some failure of epistemic sensitivity is through epistemic recklessness, and its epistemic blameworthiness is understood thus. I shall, having set the stage of epistemic justification in relation to epistemic responsibility, present my theory of epistemic reason, and of reason in general, by describing reason as knowledge of obligation. Having distinguished reasonableness from rationality, I will also present a safety theory of reasonableness, and correspondingly a measure of reasonableness, beyond my knowledge of obligation conception of rationality.