The old theological problem of "Faith" and "Knowledge," or more plainly, of instinct and reason—the question whether, in respect to the valuation of things, instinct deserves more authority than rationality, which wants to appreciate and act according to motives, according to a "Why," that is to say, in conformity to purpose and utility—it is always the old moral problem that first appeared in the person of Socrates, and had divided men's minds long before Christianity.