Theodore Roosevelt wrote, "Birth control is the one sin for which the penalty is national death, race death; a sin for which there is no atonement."

Sigmund Freud, "The abandonment of the reproductive function is the common feature of all perversions. We actually describe a sexual activity as perverse if it has given up the aim of reproduction and pursues the attainment of pleasure as an aim independent of it. So, as you will see, the breach and turning point in the development of sexual life lies in becoming subordinate to the purpose of reproduction. Everything that happens before this turn of events and equally everything that disregards it and that aims solely at obtaining pleasure is given the uncomplimentary name of "perverse" and as such is proscribed."

Mahatma Ghandi, "Artificial methods [of contraception] are like putting a premium on vice. They make men and women reckless .... Nature is relentless and will have full revenge for any such violation of her laws. Moral results can only be produced by moral restraints. All other restraints defeat the very purpose for which they are intended. If artificial methods become the order of the day, nothing but moral degradation can be the result. A society that has already become enervated through a variety of causes will still become further enervated by the adoption of artificial [birth control] methods .... As it is, man has sufficiently degraded women for his lust, and artificial methods, no matter how well-meaning the advocates may be, will still further degrade her.".