One does not, as I have said, need to deny heredity in order to resist such legislation, any more than one needs to deny the spiritual world in order to resist an epidemic of witch-burning. I admit there may be such a thing as hereditary feeble-mindedness; I believe there is such a thing as witchcraft. Believing that there are spirits, I am bound in mere reason to suppose that there are probably evil spirits; believing that there are evil spirits, I am bound in mere reason to suppose that some men grow evil by dealing with them. All that is mere rationalism; the superstition (that is the unreasoning repugnance and terror) is in the person who admits there can be angels but denies there can be devils. The superstition is in the person who admits there can be devils but denies there can be diabolists. Yet I should certainly resist any effort to search for witches, for a perfectly simple reason, which is the key of the whole of this controversy. The reason is that it is one thing to believe in witches, and quite another to believe in witch-smellers. I have more respect for the old witch-finders than for the Eugenists, who go about persecuting the fool of the family; because the witch-finders, according to their own conviction, ran a risk. Witches were not the feeble-minded, but the strong-minded--the evil mesmerists, the rulers of the elements. Many a raid on a witch, right or wrong, seemed to the villagers who did it a righteous popular rising against a vast spiritual tyranny, a papacy of sin. Yet we know that the thing degenerated into a rabid and despicable persecution of the feeble or the old. It ended by being a war upon the weak. It ended by being what Eugenics begins by being.