Foucault never developed a theory of ethics, yet his two last books, The History of Sexuality, volumes ii and iii, could be characterized as being concerned primarily with ethics. They deal with the sexual morality of ancient Greece and the Roman Empire. The question that guides Foucault's inquiry is: ‘How, why and in what form was sexuality constituted as a moral domain?’ (UP, 10). The focus of the inquiry is thus on the manner in which sexual activity was problematized, mainly by philosophers and doctors in texts written as guides for others. In the second volume of The History of Sexuality, The Use of Pleasures, the period under study is the classical Greek culture of the fourth century bc.