I am one of those who are very willing to be refuted if I say anything which is not true, and very willing to refute any one else who says what is not true, and quite as ready to be refuted as to refute-for I hold that this is the greater gain of the two, just as the gain is greater of being cured of a very great evil than of curing another. For I imagine that there is no evil which a man can endure so great as an erroneous opinion about the matters of which we are speaking and if you claim to be one of my sort, let us have the discussion out, but if you would rather have done, no matter-let us make an end of it.
–Socrates (h/t Plato)