Practical Skepticism and the Reasons for Action

Abstract

At least since Descartes's Meditations philosophers in the West have been concerned to defend the rationality of our beliefs from the threat of epistemological skepticism. The idea that there might be nothing which we know, or more radically, which we have even the slightest reason to believe, is one that many philosophers have thought to be deserving of serious attention. It seems somewhat odd, therefore, that there has not been similar attention given to what one might call practical skepticism. Is it not also possible that there is nothing which we have even the slightest reason to do? Of course, there is a sense in which epistemological skepticism might be thought to be the more basic problem. If there is nothing which we have any reason to believe, then it will follow that there is nothing which we have any reason to do. If some proposition is a reason that we have for doing something it must at least be the case that we have some reason to believe that proposition. But is practical skepticism merely a species of epistemological skepticism? I doubt it.