On sex education:
“There is no sound reason, of any sort or kind, for concealing facts when talking to children. Their questions should be answered and their curiosity satisfied in exactly the same way in regard to sex as in regard to the habits of the fishes, or any other subject that interests them. (…)
The child who is told what he wants to know, and allowed to see his parents naked, will have no pruriency and no obsession of a sexual kind. Boys who are brought up in official ignorance think and talk much more about sex than boys who have always heard this topic treated on a level with any other. (…) All ignorance is regrettable, but ignorance on so important a matter as sex is a serious danger. (…)
Speaking not only from theory, but from practical experience, I am convinced that complete openness on sexual subjects is the best way to prevent children from thinking about them excessively, nastily or unwholesomely, and also the almost indispensable preliminary to an enlightened sexual morality.”
Bertrand Russel – Our Sexual Ethics (first published in 1936!)