Eugenists imply or insist that a woman's first duty is to the state; we contend that her duty to herself is her first duty to the state. We maintain … - Margaret Sanger

I was merely thinking of the poor mothers of congested districts of the East Side who had so poignantly begged me for relief, in order that the children they had already brought into the world might have a chance to grow into strong and stalwart Americans.... Birth Control is not contraception indiscriminately and thoughtlessly practiced. It means the release and cultivation of the better racial elements in our society, and the gradual suppression, elimination and eventual extirpation of defective stocks — those human weeds which threaten the blooming of the finest flowers of American civilization.

The trouble with any effort of trying to divide humanity into the "fit" and the "unfit," is that we do not want, as H. G. Wells recently pointed out, to breed for uniformity but for variety. "We want statesmen and poets and musicians and philosophers and strong men and delicate men and brave men. The qualities of one would be the weaknesses of the other." We want, most of all, genius.
Proscription on Galtonian lines would tend to eliminate many of the great geniuses of the world who were not only "Bohemian," but actually and pathologically abnormal—men like Rousseau, Dostoevsky, Chopin, Poe, Schumann, Nietzsche, Comte, Guy de Maupassant,—and how many others? But such considerations should not lead us into error of concluding that such men were geniuses merely because they were pathological specimens, and that the only way to produce a genius is to breed disease and defect. It only emphasizes the dangers of external standards of "fit" and "unfit."
These limitations are more strikingly shown in the types of so-called "eugenic" legislation passed or proposed by certain enthusiasts. Regulation, compulsion and prohibitions affected and enacted by political bodies are the surest methods of driving the whole problem under-ground. As Havelock Ellis has pointed out, the absurdity and even hopelessness of effecting Eugenic improvement by placing on the statute books prohibitions of legal matrimony to certain classes of people, reveal the weakness of those Eugenists who minimize or undervalue the importance of environment as a determining factor. They affirm that heredity is everything and environment nothing, yet forget that it is precisely those who are most universally subject to bad environment who procreate most copiously, most recklessly and most disastrously.

As an advocate of birth control I wish … to point out that the unbalance between the birth rate of the 'unfit' and the 'fit,' admittedly the greatest present menace to civilization, can never be rectified by the inauguration of a cradle competition between these two classes. In this matter, the example of the inferior classes, the fertility of the feeble-minded, the mentally defective, the poverty-stricken classes, should not be held up for emulation.... On the contrary, the most urgent problem today is how to limit and discourage the over-fertility of the mentally and physically defective.