Plutarch Adversus Coloten 21

[21] But granting a little to Colotes, that there is nothing so vain, useless, and odious as the seeking into one’s self, let us ask him, what confusion of human life is in this, and how it is that a man cannot continue to live, when he comes once thus to reason and discourse in himself: Go to now, what am I? Am I a composition, made up of soul and body; or rather a soul, serving itself and making use of the body, as an horseman using his horse is not a subject composed of horse and man? Or is every one of us the principal part of the soul, by which we understand, reason, and act; and are all the other parts, both of soul and body, only organs and utensils of this power? Or, to conclude, is there no proper substance of the soul at all apart, but is only the temperature and complexion of the body so disposed, that it has force and power to understand and live? But Socrates does not by these questions overthrow human life, since all natural philosophers treat of the same matter. But those perhaps are the monstrous questions and enquiries that turn every thing upside down, which are in Phaedrus, ¹ where he says, that every one ought to examine and consider himself, whether he is a savage beast, more cautelous, outrageous, and furious than ever was the monster Typhon; or on the contrary, an animal more mild and gentle, partaking by Nature of a certain divine portion, and such as is free from pride. Now by these discourses and reasonings he overturns not the life of man, but drives from it presumption and arrogance, and those haughty and extravagant opinions and conceits he has of himself. For this is that monster Typhon, which your teacher and master has made to be so great in you by his warring against the Gods and divine men.