But it is one thing to claim that Plato was not the only one to write Socratic dialogues, and quite another to hold that Plato was only following the rules of some genre of writings in his own work. Such a claim, at any rate, is hardly established simply by the existence of these other writers and their writings. We may still wish to ask whether Plato's own use of Socrates as his main character has anything at all to do with the historical Socrates. The question has led to a number of seemingly irresolvable scholarly disputes. At least one important ancient source, Aristotle, suggests that at least some of the doctrines Plato puts into the mouth of the "Socrates" of the "early" or "Socrates" dialogues are the very ones espoused by the historical Socrates. Because Aristotle has no reason not to be truthful about this issue, many scholars believe that his testimony provides a solid basis for distinguishing the "Socrates" of the "early" dialogues from the character by that name in Plato's supposedly later works, whose views and arguments Aristotle suggests are Plato's own.