Lecture Five

Abstract physiology thinks it sees the facts, but it really views facts in the same way a man might who, for example, finds a magnet. He does not know what it is, nor what forces are concealed within it, but he finds the magnet while with a woman who knows what a magnet is. He says to himself, “I’ll take this home; it will make a good horseshoe.” The woman says, “You can’t use that as a horseshoe; that is a magnet.” But the man only laughs.