Margaret Sanger,
The Case for Birth Control: A Supplementary Brief and Statement of Facts
“ It is needless to insist how intimately that secondary end of marriage is bound up with the practice of birth control. Without birth control, indeed, it could frequently have no existence at all, and even at the best seldom be free from disconcerting possibilities fatal to its very essence. Against these disconcerting possibilities is often placed, on the other side, the un-esthetic nature of the contraceptives associated with birth control. Yet, it must be remembered, they are of a part with the whole of our civilized human life. We at no point enter the spiritual save through the material. ”
