We are kept keen on the grindstone of pain and necessity.

An artist who theorizes about his work is no longer artist but critic.

The professional military mind is by necessity an inferior and unimaginative mind; no man of high intellectual quality would willingly imprison his gifts in such a calling.

Science has toiled too long forging weapons for fools to use. It is time she held her hand.

The Jews looked for a special savior, a messiah, who was to redeem mankind by the agreeable process of restoring the fabulous glories of David and Solomon, and bringing the whole world at last under the firm but benevolent Jewish heel.

The science hangs like a gathering fog in a valley, a fog which begins nowhere and goes nowhere, an incidental, unmeaning inconvenience to passers-by.

I do not believe I have any immortality. The greatest evil in the world today is the Christian religion