Nine-tenths of the appeal of pornography is due to the indecent feelings concerning sex which moralists inculcate in the young; the other tenth is physiological, and will occur in one way or another whatever the state of the law may be. On these grounds, although I fear that few will agree with me, I am firmly persuaded that there ought to be no law whatsoever on the subject of obscene publications.

Bertrand Russell (1872-1970) English mathematician and philosopher

Marriage and Morals, ch. 8 “The Taboo on Sex Knowledge” (1929)