... least he keeps in sufficiently good condition to do several men's days' work every day. He has a theory about this which he practices, and which he occasionally explains briefly to those who remonstrate with him about his neglect of exercise. "You have to take exercise," he says, "because you overeat. I do not overeat, and therefore I do not need exercise." It sounds very simple and conclusive; and it seems to ... — Herbert Hoover - The Man and His Work • Vernon Kellogg