"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."
Margaret Sanger. "The Eugenic Value of Birth Control Propaganda." Birth Control Review, October 1921, page 5.
"Our failure to segregate morons who are increasing and multiplying ... demonstrates our foolhardy and extravagant sentimentalism ... [Philanthropists] encourage the healthier and more normal sections of the world to shoulder the burden of unthinking and indiscriminate fecundity of others; which brings with it, as I think the reader must agree, a dead weight of human waste. Instead of decreasing and aiming to eliminate the stocks that are most detrimental to the future of the race and the world, it tends to render them to a menacing degree dominant ... We are paying for, and even submitting to, the dictates of an ever-increasing, unceasingly spawning class of human beings who never should have been born at all."
Margaret Sanger. The Pivot of Civilization, 1922. Chapter on "The Cruelty of Charity," pages 116, 122, and 189. Swarthmore College Library edition.