 Evidently, the historical Socrates was the sort of person who provoked in those who knew him, or knew of him, a profound response, and he inspired many of those who came under his influence to write about him. But the portraits composed by Aristophanes, Xenophon, and Plato are the ones that have survived intact, and they are therefore the ones that must play the greatest role in shaping our conception of what Socrates was like. Of these, Clouds has the least value as an indication of what was distinctive of Socrates’ mode of philosophizing: after all, it is not intended as a philosophical work, and although it may contain a few lines that are characterizations of features unique to Socrates, for the most part it is an attack on a philosophical type—the long-haired, unwashed, amoral investigator into abstruse phenomena—rather than a depiction of Socrates himself. Xenophon’s depiction of Socrates, whatever its value as historical testimony (which may be considerable), is generally thought to lack the philosophical subtlety and depth of Plato’s. At any rate, no one (certainly not Xenophon himself) takes Xenophon to be a major philosopher in his own right; when we read his Socratic works, we are not encountering a great philosophical mind. But that is what we experience when we read Plato. We may read Plato’s Socratic dialogues because we are (as Plato evidently wanted us to be) interested in who Socrates was and what he stood for, but even if we have little or no desire to learn about the historical Socrates, we will want to read Plato because in doing so we are encountering an author of the greatest philosophical significance. No doubt he in some way borrowed in important ways from Socrates, though it is not easy to say where to draw the line between him and his teacher (more about this below in section 12). But it is widely agreed among scholars that Plato is not a mere transcriber of the words of Socrates (any more than Xenophon or the other authors of Socratic discourses). His use of a figure called “Socrates” in so many of his dialogues should not be taken to mean that Plato is merely preserving for a reading public the lessons he learned from his teacher.