It is not by delusion, however exalted, that mankind can prosper, but only by unswerving courage in the pursuit of truth.

Protestants, from the first, have been distinguished from their opponents by what they do not believe; to throw over one more dogma is, therefore, merely to carry the movement one stage further. Moral fervor is the essence of the matter.

RELIGION: A set of beliefs held as dogmas, dominating the conduct of life, going beyond or contrary to evidence, and inculcated by methods which are emotional or authoritarian, not intellectual.

The true spirit of delight, the exaltation, the sense of being more than Man, which is the touchstone of the highest excellence, is to be found in mathematics as surely as poetry.

Power is sweet; it is a drug, the desire for which increases with a habit.

Religion may in most of its forms be defined as the belief that the gods are on the side of the government.

I had supposed until that time that it was quite common for parents to love their children, but the war persuaded me that it is a rare exception. I had supposed that most people liked money better than almost anything else, but I discovered that they liked destruction even better. I had supposed that intellectuals frequently loved truth, but I found here again that not ten per cent of them prefer truth to popularity.