Many if not all Analytic Philosophers in the first seventy years or so of Analytic Philosophy thought that enquiry into concepts had a significant place in philosophy. This is not a view shared by most contemporary Analytic Philosophers. One reason for this change in attitude is Quine’s famous critique of analyticity. Enquiry into concepts had been thought to depend on a satisfactory notion of analyticity. Many thought that Quine had shown that no such notion is available. It is true that the traditional model of Conceptual Analysis operated with the notion of analyticity. The reductive project of Conceptual Analysis was supposed to issue in analytic truths that were necessarily true and knowable a priori. Furthermore the necessity ...