Fear is the parent of cruelty, and therefore it is no wonder if cruelty and religion go hand in hand.

Inferences of Science and Common Sense differ from those of deductive logic and mathematics in a very important respect, namely, when the premises are true and the reasoning correct, the conclusion is only probable.

The man who only loves beautiful things is dreaming, whereas the man who knows absolute beauty is wide awake.

Against the vast majority of my countrymen, even at this moment, in the name of humanity and civilization, I protest against our share in the destruction of Germany. A month ago Europe was a peaceful comity of nations; if an Englishman killed a German, he was hanged. Now, if an Englishman kills a German, or if a German kills an Englishman, he is a patriot, who has deserved well of his country.

Physics, owing to the simplicity of its subject matter, has reached a higher state of development than any other science.

God and Satan alike are essentially human figures, the one a projection of ourselves, the other of our enemies.

Any philosophy worth taking seriously would have to be built upon a firm foundation of unyielding despair.