A growing number of epistemologists have endorsed the Ignorance Norm for Inquiry. Roughly, this norm says that one should not inquire into a question unless one is ignorant of its answer. I argue that, in addition to ignorance, proper inquiry requires a certain kind of knowledge. Roughly, one should not inquire into a question unless one knows it has a true answer. I call this the Knowledge Norm for Inquiry. Proper inquiry walks a fine line, holding knowledge that there is (...) an answer in the left hand and ignorance of the answer in the right. (shrink)

This article provides an overview of recent work on norms of inquiry. After some preliminaries about inquiry in §1, I discuss in §2 the ignorance norm for inquiry, presenting arguments for and against, as well as some alternatives. In §3, I consider its relation to the aim of inquiry. In §4, I discuss positive norms on inquiry: norms that require having rather than lacking certain states. Finally, in §5, I look at questions about the place of norms of inquiry within (...) normative epistemology. (shrink)