According to Lehrer’s defeasibility account of knowledge, we can understand knowledge as undefeated justified true belief. But this account faces many serious problems. One important problem is that from one’s subjective point of view, one can hardly bridge the gap between one’s personal justification and objective truth. Another important problem is that this account can hardly accommodate the externalist intuition that the epistemic status of a belief is not entirely determined by factors that are internal to the subject’s perspective. The (...) goal of this paper is to offer an alternative account of knowledge which can successfully deal with these problems. On the basis of a Sellarsian social practice theory of justification, I argue that we can understand knowledge as objectively justified belief. (shrink)

On Kant's view, we are rational beings who are morally responsible for our actions. The main goal of this paper is to show that this Kantian view of ourselves is not undermined by the Manipulation Argument, which is currently the biggest challenge to compatibilism. To this end, I argue that a Kantian account of freedom offers a new soft-line reply to this argument. On this Kantian account, moral responsibility requires not only positive freedom but also negative freedom. An agent is (...) free in the positive sense just in case the agent has the rational capacity to act in compliance with moral norms. And an agent lacks negative freedom regarding their actions when these actions are determined by internal or external factors beyond their rational control. Based on this Kantian account, I provide a principled explanation of why there is a significant difference between manipulated actions and merely causally determined actions regarding moral responsibility. In addition, I bring out the distinctive characteristics of my Kantian account further by comparing it with two competing conceptions of freedom: leeway freedom and sourcehood freedom. (shrink)