Euthyphro

by Plato.

Euthyphro (Ancient Greek: Εὐθύφρων, "Euthuphron": right-minded or sincere;[1] English pronunciation: /ˈjuːθɪfroʊ/) is one of Plato's early dialogues, dated to after 399 BC. Taking place during the weeks leading up to Socrates' trial, the dialogue features Socrates and Euthyphro, a man known for claiming to be a religious expert. They attempt to pinpoint a definition for piety.