Reasons Why

Reasons Why first argues that what philosophers are really after, or at least should be after, when they seek a theory of explanation, is a theory of answers to why-questions. It then advances a thesis about what form a theory of answers to why-questions should take: a theory of answers to why-questions should say what it takes for one fact to be a reason why another fact obtains. The book's main thesis, then, is a theory of reasons why.