"I do not insist that my argument is right in all other respects, but I would contend at all costs in both word and deed as far as I could that we will be better men, braver and less idle, if we believe that one must search for the things one does not know, rather than if we believe that it is not possible to find out what we do not know and that we must not look for it."
Socrates, in Plato’s Meno, 86b-. G.M.A. Grube, trans.