Phaedrus

Socrates. Understand then, fair youth, that the former discourse was by Phaedrus, the son of Pythocles (Eager for Fame) of Myrrhinus (Myrrhtown); but this which I shall speak is by Stesichorus, son of Euphemus (Man of pious Speech) of Himera (Town of Desire). And I must say that this saying is not true, which teaches that when a lover is at hand the non-lover should be more favored, because the lover is insane, and the other sane. For if it were a simple fact that insanity is an evil, the saying would be true; but in reality the greatest of blessings come to us through madness, when it is sent as a gift of the gods. For the prophetess at Delphi and the priestesses at Dodona when they have been mad have conferred many splendid benefits upon Greece both in private and in public affairs, but few or none when they have been in their right minds; and if we should speak of the Sibyl and all the others who by prophetic inspiration have foretold many things to many persons and thereby made them fortunate afterwards, anyone can see that we should speak a long time. And it is worth while to adduce also the fact that those men of old who invented names thought that madness was neither shameful nor disgraceful; otherwise they would not have connected the very word mania with the noblest of arts, that which foretells the future, by calling it the manic art. No, they gave this name thinking that mania, when it comes by gift of the gods, is a noble thing, but nowadays people call prophecy the mantic art, tastelessly inserting a T in the word. So also, when they gave a name to the investigation of the future which rational persons conduct through observation of birds and by other signs, since they furnish mind (nous) and information (historia) to human thought (oiesis) from the intellect (dianoia) they called it the oionoistic (oionoistike) art, which modern folk now call oionistic making it more high-sounding by introducing the long O. The ancients, then testify that in proportion as prophecy (mantike) is superior to augury, both in name and in fact, in the same proportion madness, which comes from god, is superior to sanity, which is of human origin. Moreover, when diseases and the greatest troubles have been visited upon certain families through some ancient guilt, madness has entered in and by oracular power has found a way of release for those in need, taking refuge in prayers and the service of the gods, and so, by purifications and sacred rites, he who has this madness is made safe for the present and the after time, and for him who is rightly possessed of madness a release from present ills is found.