What Plato thought, I am convinced, is not always what Plato said, especially if what he said is construed independently from its particular conversational context. The dialogues themselves are teaching instruments, with lessons to be learned not only from their content but from their structure as well. And one of the remarkable things about the Theaetetus and the Sophist is that their structure exhibits a logical form which is considerably more determinate and precise than commentators seem yet to have realized. University of Chicago Press.
