 There are other objections to the reliance on intuitions in philosophy that do not call into question their reliability. They call into question their relevance. Casullo (2003) proposes to treat “experience” as a natural kind term, and Hilary Kornblith and Philip Kitcher propose to treat epistemic terms such as “knowledge” and “justification” in that way too. Kornblith thinks that intuitions can help direct us to the appropriate objects, or phenomena, of investigation but not much more. For instance, we have an intuition that knowledge is not a type of furniture so we should not start our empirical investigation into the essential nature of knowledge by looking at furniture (Kornblith 1998, 2005, 2006). If we think of normative terms such as “wrong” as natural kind terms, and so as analogous to a natural kind term like “water”, there would be some reference-fixing description associated with “wrong” as there is for “water”. For “water” that description is something like: the stuff, whatever it is, that in the actual world has the properties of quenching thirst, putting out certain fires, falling from the clouds as rain, filling the lakes and rivers, etc., on the planet on which we live. Empirical investigation is then needed to discover what this reference-fixing description in fact refers to. On Kornblith’s view, there is little room for rational intuitions to play in discovering the essential nature of knowledge or normative kinds. They do not play a role in determining the content of any relevant reference-fixing description and, at most, tell us where not to look to find what does fulfill a given description.