"In the days when I was experimenting with vegetarianism, I sought earnestly for evidence of a non-meat-eating race; but candor compelled me to admit that man was like the monkey and the pig and the bear — he was vegetarian when he could not help it. The advocates of the reform insist that meat as a diet causes muddy brains and dulled nerves; but you would certainly never suspect this from a study of history. What you find in history is that all men crave meat, all struggle for it, and the strongest and cleverest get it."