[There has been] every kind of cruelty practiced upon all sorts of people in the name of religion.

...impregnation will be regarded in an entirely different manner, more in the light of a surgical operation, so that it will be thought not ladylike to have it performed in the natural manner.

I do not think that the real reason why people accept religion has anything to do with argumentation. They accept religion on emotional grounds.

The best practical advice I can give to the present generation is to practice the virtue which the Christians call love.

The Christian view that all intercourse outside marriage is immoral was, as we see in the above passages from St. Paul, based upon the view that all sexual intercourse, even within marriage, is regrettable. A view of this sort, which goes against biological facts, can only be regarded by sane people as a morbid aberration. The fact that it is embedded in Christian ethics has made Christianity throughout its whole history a force tending towards mental disorders and unwholesome views of life.

It is clear that thought is not free if the profession of certain opinions makes it impossible to earn a living.

Aristotle maintained that women have fewer teeth than men; although he was twice married, it never occurred to him to verify this statement by examining his wives' mouths.