The worst moment for an atheist is when he feels a profound sense of gratitude and has no one to thank.

If there were no God, there would be no atheists.

In dealing with the arrogant asserter of doubt, it is not the right method to tell him to stop doubting. It is rather the right method to tell him to go on doubting, to doubt a little more, to doubt every day newer and wilder things in the universe, until at last, by some strange enlightenment, he may begin to doubt himself.

A modern vegetarian is also a teetotaler, yet there is no obvious connection between consuming vegetables and not consuming fermented vegetables. A drunkard, when lifted laboriously out of the gutter, might well be heard huskily to plead that he had fallen there through excessive devotion to a vegetable diet.

I came to the conclusion that the optimist thought everything good except the pessimist, and that the pessimist thought everything bad, except himself.

I never said a word against eminent men of science. What I complain of is a vague popular philosophy which supposes itself to be scientific when it is really nothing but a sort of new religion and an uncommonly nasty one. When people talked about the fall of man, they knew they were talking about a mystery, a thing they didn't understand. Now they talk about the survival of the fittest: they think they do understand it, whereas they have not merely no notion, they have an elaborately false notion of what the words mean.

Facts as facts do not always create a spirit of reality, because reality is a spirit.