children, if he did all the duties of his station, one of which might be helping his wife off her horse; but he would not have refrained from doing this because he had read in a book that a course of falling off horses often resulted in the birth of a genius. Both Moslem and Christian would have thought such speculations not only impious but utterly unpractical. I quite agree with them; but that is not the point here. The point here is that a new school believes Eugenics _against_ Ethics. And it is proved by one familiar fact: that the heroisms of history are actually the crimes of Eugenics. The Eugenists' books and articles are full of suggestions that non-eugenic unions should and may come to be regarded as we regard sins; that we should really feel that marrying an invalid is a kind of cruelty to children. But history is full of the praises of people who have held sacred such ties to invalids; of cases like those of Colonel Hutchinson and Sir William Temple, who remained faithful to betrothals when beauty and health had been apparently blasted. And though the illnesses of Dorothy Osborne and Mrs. Hutchinson may not fall under the Eugenic speculations (I do not know), it is obvious that they might have done so; and certainly it would not have made any difference to men's moral opinion of the act. I do not discuss here which morality I favour; but I insist that they are opposite. The Eugenist really sets up as saints the very men whom hundreds of families have called sneaks. To be consistent, they ought to put up statues to the men who deserted their loves because of bodily misfortune; with inscriptions celebrating the good Eugenist who, on his fiancée falling off a bicycle, nobly refused to marry her; or to the young hero who, on hearing of an uncle with erysipelas, magnanimously broke his word. What is perfectly plain is this: that mankind have hitherto held the bond between man and woman so sacred, and the effect of it on the children so incalculable, that they have always admired the maintenance of honour more than the maintenance of safety. Doubtless they thought that even the children might be none the worse for not being the children of cowards and shirkers; but this was not the first thought, the first commandment. Briefly, we may say that while many moral systems have set restraints on sex almost as severe as any Eugenist could set, they have almost always had the character of securing the fidelity of the two sexes to each other, and leaving the rest to God. To introduce an ethic which makes that fidelity or infidelity vary with some calculation about heredity is that rarest of all things, a revolution that has not happened before.