My focus will be on two questions about Moore’s justification to believe the premises and the conclusion of the argument above. At stake is what makes it possible for our experiences to justify our beliefs, and what makes it possible for us to be justified in disbelieving skeptical..

The chapter begins by exploring a philosophical case study of the use of intuitions — viz., the debate regarding the problem of radical scepticism, paying particular attention to key figures within this debate such as Barry Stroud, John Austin, and Ludwig Wittgenstein. It contends that this debate demonstrates something interesting about the nature of intuitions and the role that they can play in philosophical inquiry. In particular, the chapter argues that we need to think of the philosophical use of intuitions (...) as at least sometimes involving a significant level of expertise. The chapter closes by considering the relevance of this point about philosophical intuitions to the negative programme in experimental philosophy. (shrink)

As I am sitting at my desk in front of my computer, a thought crosses my mind: There's water in the glass. The thought has a particular content: that there is water in the glass. And, if all is well, there is water in the glass, so my thought is true. According to external-world skepticism, I still do not know that there is water in the glass, because my way of telling what's in front of me does not allow me (...) to rule out the possibility that I’m only under some kind of illusion about what's in front of me. Analogously, according to content skepticism, I cannot know that I am thinking that there is water in my glass, even if in fact that is what I am thinking. This is because for all I know, my way of telling what I am thinking does not allow me to rule out the possibility that I am only under some kind of illusion about what I am thinking. (shrink)