 Just as we should reject the idea that Plato must have made a decision, at a fairly early point in his career, no longer to write one kind of dialogue (negative, destructive, preparatory) and to write only works of elaborate theory-construction; so we should also question whether he went through an early stage during which he refrained from introducing into his works any of his own ideas (if he had any), but was content to play the role of a faithful portraitist, representing to his readers the life and thought of Socrates. It is unrealistic to suppose that someone as original and creative as Plato, who probably began to write dialogues somewhere in his thirties (he was around 28 when Socrates was killed), would have started his compositions with no ideas of his own, or, having such ideas, would have decided to suppress them, for some period of time, allowing himself to think for himself only later. (What would have led to such a decision?) We should instead treat the moves made in the dialogues, even those that are likely to be early, as Platonic inventions—derived, no doubt, by Plato’s reflections on and transformations of the key themes of Socrates that he attributes to Socrates in Apology. That speech indicates, for example, that the kind of religiosity exhibited by Socrates was unorthodox and likely to give offense or lead to misunderstanding. It would be implausible to suppose that Plato simply concocted the idea that Socrates followed a divine sign, especially because Xenophon too attributes this to his Socrates. But what of the various philosophical moves rehearsed in Euthyphro—the dialogue in which Socrates searches, unsuccessfully, for an understanding of what piety is? We have no good reason to think that in writing this work Plato adopted the role of a mere recording device, or something close to it (changing a word here and there, but for the most part simply recalling what he heard Socrates say, as he made his way to court). It is more likely that Plato, having been inspired by the unorthodoxy of Socrates’ conception of piety, developed, on his own, a series of questions and answers designed to show his readers how difficult it is to reach an understanding of the central concept that Socrates’ fellow citizens relied upon when they condemned him to death. The idea that it is important to search for definitions may have been Socratic in origin. (After all, Aristotle attributes this much to Socrates.) But the twists and turns of the arguments in Euthyphro and other dialogues that search for definitions are more likely to be the products of Plato’s mind than the content of any conversations that really took place.