There is only one religion, though there are a hundred versions of it.

There must be something solemn, serious, and tender about any attitude which we denominate religious. If glad, it must not grin or snicker; if sad, it must not scream or curse.

Religions die when they are proved to be true. Science is the record of dead religions.

Of all possible sexual perversions, religion is the only one to have ever been scientifically systematized.

All the sweetness of religion is conveyed to the world by the hands of story-tellers and image-makers. Without their fictions the truths of religion would for the multitude be neither intelligible nor even apprehensible; and the prophets would prophesy and the teachers teach in vain.

I cannot see how a man of any large degree of humorous perception can ever be religious -- except he purposely shut the eyes of his mind and keep them shut by force.

Oh senseless man, who cannot possibly make a worm, and yet will make Gods by dozens.

Toleration is the best religion.

Religions, which condemn the pleasures of sense, drive men to seek the pleasures of power. Throughout history power has been the vice of the ascetic.

A good test of a man's religion is its vitality.