I believe in using words, not fists. I believe in my outrage knowing people are living in boxes on the street. I believe in honesty. I believe in a good time. I believe in good food. I believe in sex.

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.

One of the chief triumphs of modern mathematics consists in having discovered what mathematics really is.

Do not feel certain of anything.

Conquer the world by intelligence, and not merely by being slavishly subdued by the terror that comes from it.

Another merit of home is that it preserves the diversity between individuals. If we were all alike, it might be convenient for the bureaucrat and the statistician, but it would be very dull, and would lead to a very unprogressive society.

In the visible world, the Milky Way is a tiny fragment; within this fragment, the solar system is an infinitesimal speck, and of this speck our planet is a microscopic dot. On this dot, tiny lumps of impure carbon and water, of complicated structure, with somewhat unusual physical and chemical properties, crawl about for a few years, until they are dissolved again into the elements of which they are compounded.