 This entry addresses the nature and epistemological role of intuition by considering the following questions: (1) What are intuitions?, (2) What roles do they serve in philosophical (and other “armchair”) inquiry?, (3) Ought they serve such roles?, (4) What are the implications of the empirical investigation of intuitions for their proper roles?, and (in the supplementary document titled “The Logical Structure of the Method of Cases”)  (5) What is the content of intuitions prompted by the consideration of hypothetical cases?