 This is not to say that MM had no specific meaning. Simply, it is a matter of dealing with potentially ambiguous elements. In particular, it is necessary to clarify the notion of man, i.e., whether “man” refers to each individual or to humanity in general: in discussing this issue, the meaning of the other terms that make up the sentence will also become clearer. In turn, this will help us assess the underlying meaning of Protagoras’ thesis and its field of applicability, so as to determine whether it is only an epistemological thesis or whether it also carries practical or political implications. As it will turn out, the sentence can be read on different levels, in accordance with the archaic logic which says there is no need to clearly distinguish the different meanings possessed by a term.