Abstract
In the 5th century BC, in Athens, Antiphon reflects on the relationship between physis and nómos in a way quite different from most sophists. Indeed, one of the particularities of sophist thought is to minimize physis so that thinking focus itself on nómos, on what man can, through thinking and debate, establish in regard to the common good and justice in the pólis. However, Antiphon takes up this relationship between nature and law to direct it to another path. In an unusual way for a sophist, we see physis being emphasized at the expense of nómos. The comparison between the two concepts also serves as a backdrop for harsh criticisms of justice and laws. The objective of this article is, through the criticisms Antiphon makes to the system of the laws of the pólis, to think about the relationship established by the sophist between physis and nómos in order to find out if there is a new understanding of these concepts and to reflect the reason that led Antiphon to revisit them.