Society is the master of its defectives.

But normal people are their own masters.

Any attempt on the part of society to control the choice of partners in the marital relation would be tyranny." Recognizing the need for "negative eugenics" fully, and declaring in its name that "mental and physical defectives of society should be kept from perpetuating their defects through propagation," he insisted that "eugenists must recognize and admit the enormous force of personal preference" in marriage.
Doctor Ward gives a figure--as above--which might be used to indicate the conclusions of Galton, in his _Hereditary Genius_, and of Ribot and others.

Doctor Galton himself gave in his volume on the _Social Order_ a chart somewhat more discriminating.

In any case, however, the eugenists must depend upon the mass of the mediocre for a supply of geniuses and those of exceptional talent and depend upon the process of reproduction for securing that supply.