Abstract

In Plato’s Euthyphro, Socrates raises the question whether piety is coextensive with justice, or a part of it (11e4-12a2; cf. 12c10-d3). Euthyphro chooses the latter option, and seeks to determine the part of justice that piety happens to be. Scholars have debated fiercely about whether Socrates shares this view (Calef 1995a; McPherran 1995; Calef 1995b). This paper argues that, if Euthyphro is to remain consistent throughout the dialogue, coextensiveness must be favored over the part-of-justice view. If this is so, then the Euthyphro is also consistent with Socrates’ defense of the unity of the virtues in Plato’s Protagoras.