Either man will abolish war, or war will abolish man.

So far as I can remember, there is not one word in the Gospels in praise of intelligence.

Fear is the main source of superstition, and one of the main sources of cruelty. To conquer fear is the beginning of wisdom.

That the world is in a bad shape is undeniable, but there is not the faintest reason in history to suppose that Christianity offers a way out.

The luxury to disparage freedom is the privilege of those who already possess it.

Civilized life, if it is to be stable, must provide a harmless outlets for the impulses which our remote ancestors satisfied in hunting. In Australia, where people are few, and rabbits are many, I watched the whole populace satisfying the primitive impulse in the primitive manner by the skilful slaughter of many thousands of rabbits.

Every living thing is a sort of imperialist, seeking to transform as much as possible of its environment into itself.