All of our problems are the result of overbreeding among the working class, and if morality is to mean anything at all to us, we must regard all the … - Margaret Sanger

It is said a fish as large as a man has a brain no larger than the kernel of an almond. In all fish and reptiles where there is no great brain development, there is also no conscious sexual control. The lower down in the scale of human development we go the less sexual control we find. It is said that the aboriginal Australian, the lowest known species of the human family, just a step higher than the chimpanzee in brain development, has so little sexual control that police authority alone prevents him from obtaining sexual satisfaction on the streets. According to one writer, the rapist has just enough brain development to raise him above the animal, but like the animal, when in heat knows no law except nature which impels him to procreate whatever the result. Every normal man and Woman has the power to control and direct his sexual impulse. Men and women who have it in control and constantly use their brain cells in thinking deeply, are never sensual.

These dangers inherent in the very idea of humanitarianism and altruism, dangers which have to-day produced their full harvest of human waste, of inequality and inefficiency, were fully recognized in the last century at the moment when such ideas were first put into practice.

While I personally believe in the sterilization of the feeble-minded, the insane and syphilitic, I have not been able to discover that these measures are more than superficial deterrents when applied to the constantly growing stream of the unfit. They are excellent means of meeting a certain phase of the situation, but I believe in regard to these, as in regard to other eugenic means, that they do not go to the bottom of the matter. Neither the mating of healthy couples nor the sterilization of certain recognized types of the unfit touches the great problem of unlimited reproduction of those whose housing, clothing, and food are all inadequate to physical and mental health. These measures do not touch those great masses, who through economic pressure populate the slums and there produce in their helplessness other helpless, diseased and incompetent masses, who overwhelm all that eugenics can do among those whose economic condition is better.