Socrates: Do you see, Hippias, that I speak the truth when I say that I am persistent in questioning wise men? And this is probably the only good thing about me, as I am otherwise quite worthless; for I am all wrong about facts, and do not know the truth about them. And it is to me sufficient proof of the truth of this, that when I come into contact with one of you who are famous for wisdom, and to whose wisdom all the Greeks bear witness, I am found to know nothing; for there is hardly a single thing about which you and I have the same opinion; and yet what greater proof of ignorance is there than when one disagrees with a wise man? But I have this one remarkable good quality, which is my salvation; for I am not afraid to learn, but I inquire and ask questions and am very grateful to him who answers, and I never failed in gratitude to anyone; for when I have learned anything I have never denied it, pretending that the information was a discovery of my own; but I praise the wisdom of him who instructed me and proclaim what I learned from him.
Hippias Minor 372a-c