13 性的欲望とは何か? ──現象学と概念分析∗ 魚住洋一 概要 From the late 1960s, philosophical discussions on sex opened up in Britain and the U.S. The topics of the discussions were prostitution, rape, pornography and so on, but in order to deal with these problems, the question of “what is ‘sexual’ ?” must first be clarified. I, in this essay, reviewed the early discussions involving sexual activity and sexual desire, part