 Philosophy aims at true definitions and true stories based on them. But it also aims at persuasion, since the philosophical lover wants to persuade his boy to follow him on the path to the forms. Philosophy and rhetoric must thus go together, which means that rhetoric, too, must be developed as a technê. It must, first, distinguish and give definitions of the various kinds of souls and kinds of speeches, revealing their respective capacities and susceptibilities, and, second, “coordinate each kind of soul with the kind of speech appropriate to it, explaining why one kind of soul is necessarily convinced by one kind of speech, while another is not” (271b1–5). Mastery of such a science, however, requires one further thing: “the student must observe these things as they are in real life, and actually being put into practice, and be able to follow them with keen perception” (d8-e1). It isn’t enough, in other words, to know what kinds of speeches affect what kinds of soul, the philosophical rhetorician must also know that this man in front of him is of such and such a kind, and be able to talk in the kind of way that will prove convincing to him (e2–272b2).