 The Socrates of Plato’s Apology tries to solve a puzzle. The Delphic oracle says that no one is wiser than Socrates. But Socrates does not think himself wise. He calls into question the truth of neither the oracle’s pronouncements nor his self-perception. Accordingly, he must figure out how both are consistent with each other. In order to do so, Socrates talks to various groups of experts in Athens: politicians, poets, and craftsmen. As it turns out, all of them think that they know something about great and important things, but in fact, it seems clear to Socrates, they do not. When asked they cannot provide reasons for believing the things they claim to know that are rationally satisfactory. Socrates knows that he does not know about these most important matters (megista; 22d); his interlocutors, it appears, do not know that they lack this knowledge. In this respect, Socrates is wiser than everyone else who has any general reputation for wisdom. In the course of recounting his conversations with others, Socrates says something enigmatic: “About myself I knew that I know nothing” (22d; cf. Fine 2008). Some readers (ancient and modern) take Socrates to profess that he knows nothing. But the context of the dialogue allows us to read his pronouncement as unproblematical. Socrates knows that he does not know about important things. He advocates the importance of critically examining one’s own and others’ views on important matters, precisely because one does not know about them (Vogt 2012a, ch. 1). Such examination is the only way to find out.