"With what I know, with what I feel, I could not give life to someone without falling into a total contradiction with myself, without being intellectually dishonest and without committing a moral crime. It is interesting that this attitude in me is really old, as I'd had it before crystallizing my thoughts on this subject. I started feeling disgust towards procreation very early; it was an answer to my horror; not only: to the horror of life and the thirst for it. I never accepted sex other than for pleasure. Its proper function always created in me an insurmountable aversion. I would never voluntarily agree to take responsibility for life."
January 1, 1970
https://en.wikiquote.org/wiki/Antinatalism