Knowledge of birth control is essentially moral. Its general, though prudent, practice must lead to a higher individuality and ultimately to a cleane… - Margaret Sanger

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 changes which tend toward the uplift and survival of the human race as moral.

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.

...thousands of little children occupy sleeping quarters with parents and boarders whose every act is visible to all. Morality indeed! Society is much like the ostrich with its head in the sand. It will not look at facts and face the responsibility of its own stupidity.