Critics oft en argue that empiricism cannot account for obvious cases of knowledge and so implies skepticism. In general, a skeptic about a certain domain of beliefs (e.g. the external world, induction, religious belief) denies that we have knowledge in that area. He need not deny that the propositions are true, but only that we cannot know that they are. He is also not committed to holding that we should not believe them. Skepticism is a purely epistemic judgement about the quality of our evidence. What might be called ‘general skepticism’ is the view that we have no knowledge at all, not even knowledge that we have none.