 In the Theaetetus, Socrates asks, “Herein lies the difficulty which I can never solve to my satisfaction—What is knowledge?” (146a). The subsequent philosophical discussion often proceeds by setting out various hypotheses, e.g., that knowledge is true belief, and considering possible counterexamples to the hypothesis. So, for instance, Socrates argues that knowledge isn’t simply true belief because a skilled lawyer can persuade a person to have a belief that is true, but that belief wouldn’t actually be knowledge [see the entry on the  Theaetetus].  Socrates typically expects, and receives, agreement from his interlocutor. Nor does Socrates ask his interlocutor, “What is your conception of knowledge” or “What counts as knowledge for Athenians?” Rather, he seems to expect a global answer about what knowledge is. In addition, he seems to expect that knowledge has a single nature, as suggested by his telling Theaetetus, “I want you… to give one single account of the many branches of knowledge” (148d).