 It is important to be clear, however, that whether or not Hare was the first to use the term ‘supervene’ in the philosophical sense, he was by no means the first to assert a supervenience thesis. For example, while G. E. Moore did not use the term ‘supervene’, he asserted: “one of the most important facts about qualitative difference…[is that] two things cannot differ in quality without differing in intrinsic nature” (1922, 263). And there are many other historical examples of such explicit statements of supervenience theses. Moreover, though we are not going to argue the point here, it seems no exaggeration to say that virtually every major figure in the history of western philosophy has been at least implicitly committed to some supervenience thesis or other (or to the denial of one).