So, we’ve made it to one of Plato’s most famous dialogues, Euthyphro. Socrates is on his way to court, having been charged with corrupting the youth of Athens, when he meets a young man, Euthyphro, who is there to charge his father with murder. The primary question here is how to define piety, but with a theme throughout the dialogue of intellectual humility, even more so than in the other works so far.
Plato’s dialogue Meno begins with the titular character asking Socrates whether virtue is something that can be taught. Socrates, of course, wants to begin by defining what exactly virtue is. Now, in Lysis, Laches, and Charmides, Socrates and friends couldn’t even figure out what a few particular virtues are, so it seems unlikely that we’ll find out what virtue as a whole is (spoiler: we don’t), but interestingly, unlike those three aporetic dialogues, Socrates does present a positive argument of his own and even offers a conclusion at the end.