[169e]
for if a man has a science which knows itself, he will be similar himself to that which he has. For instance, he who has swiftness will be swift, he who has beauty will be beautiful, and he who has knowledge will know; and when he has knowledge that is of itself, he will then, surely, be in the position of knowing himself.
I do not dispute, I said, that when a man has that which knows itself he will know himself; but having that, how is he bound to know what he knows and what he does not know?