of procreation.  Love, apart from procreation, writes one of these fanatics, Vacher de Lapouge, in the spirit of some of the early Christian Fathers (see ante p. 509), is an aberration comparable to sadism and sodomy.  Procreation is the only thing that matters, and it must become “a legally prescribed social duty” only to be exercised by carefully selected persons, and forbidden to others, who must, by necessity, be deprived of the power of procreation, while abortion and infanticide must, under some circumstances, become compulsory.  Romantic love will disappear by a process of selection, as also will all religion except a new form of phallic worship (G.  Vacher de Lapouge, “Die Crisis der Sexuellen Moral,” Politisch Anthropologische Revue, No. 8, 1908).  It is sufficient to point out that love is, and always must be, the natural portal to generation.  Such excesses of procreative fanaticism cannot fail to occur, and they render the more necessary the emphasis which has here been placed on the art of love.

“What has posterity done for me that I should do anything for posterity?” a cynic is said to have asked.  The answer is very simple.  The human race has done everything for him.  All that he is, and can be, is its creation; all that he can do is the result of its laboriously accumulated traditions.  It is only by working towards the creation of a still better posterity, that he can repay the good gifts which the human race has brought him.[426] Just as, within the limits of this present life, many who have received benefits and kindnesses they can never repay to the actual givers, find a pleasure in vicariously repaying the like to others, so the heritage we have received from our ascendents we can never repay, save by handing it on in a better form to our descendants.

It is undoubtedly true that the growth of eugenical ideals has not been, for the most part, due to religious feeling.  It has been chiefly the outcome of a very gradual, but very comprehensive, movement towards social amelioration, which has been going on for more than a century, and which has involved a progressive effort towards the betterment of all the conditions of life.  The ideals of this movement were proclaimed in the eighteenth century, they began to find expression early in the nineteenth century, in the initiation of the modern system of sanitation, in the growth of factory legislation, in all the movements which have been borne onwards by socialism hand in hand with individualism.  The inevitable tendency has been slowly towards the root of the matter; it began to be seen that comparatively little can be effected by improving the conditions of life of adults; attention began to be concentrated on the child, on the infant, on the embryo in its mother’s womb, and this resulted in the fruitful movement of puericulture inspired by Pinard, and finally the problem is brought to its source at the point of procreation, and the regulation of sexual selection between stocks and between