I believe that the abolition of private ownership of land and capital is a necessary step toward any world in which the nations are to live at peace with one another.

There is exactly the same degree of possibility and likelihood of the existence of the Christian God as there is of the existence of the Homeric god. I cannot prove that either the Christian god or the Homeric gods do not exist, but I do not think that their existence is an alternative that is sufficiently probable to be worth serious consideration.

Contempt for happiness is usually contempt for other people's happiness, and is an elegant disguise for hatred of the human race.

What we cannot think we cannot think, therefore we also cannot say what we cannot think.

I think periods of browsing during which no occupation is imposed from without are important in youth because they give time for the formation of these apparently fugitive but really vital impressions.

The whole problem with the world is that fools and fanatics are always so certain of themselves, and wiser people so full of doubts.

When the state intervenes to insure the indoctrination of some doctrine, it does so because there is no conclusive evidence in favor of that doctrine.