A man is not idle because he is absorbed in thought. There is a visible labor and there is an invisible labor.

The soul in the darkness sins, but the real sinner is he who caused the darkness.

You have enemies? Why, it is the story of every man who has done a great deed or created a new idea. It is the cloud which thunders around everything that shines. Fame must have enemies, as light must have gnats. Do no bother yourself about it; disdain. Keep your mind serene as you keep your life clear.

Though one believes in nothing, there are moments in life when one accepts the religion of the temple nearest at hand.

Every bird which flies has the thread of the infinite in its claw.

Love is the only future God offers.

To crush out fanaticism and revere the infinite, such is the law. Let us not confine ourselves to falling prostrate beneath the tree of creation and contemplating its vast ramifications full of stars. We have a duty to perform, to cultivate the human soul, to defend mystery against miracle, to adore the incomprehensible and to reject the absurd; to admit nothing that is inexplicable excepting what is necessary, to purify faith and obliterate superstition from the face of religion, to remove the vermin from the garden of God.