Heresy is a cradle; orthodoxy a coffin.

No one can control his own opinion or his own belief. My belief was forced upon me by my surroundings. I am the product of all circumstances that have in any way touched me.

Epithets are not arguments. Abuse does not persuade.

There is no evidence that God ever interfered in the affairs of man. The hand of earth is stretched uselessly towards heaven. From the clouds there comes no help.

The mechanic, when a wheel refuses to turn, never thinks of dropping on his knees and asking the assistance of some divine power. He knows there is a reason. He knows that something is too large or too small; that there is something wrong with his machine; and he goes to work and he makes it larger or smaller, here or there, until the wheel will turn.

Twenty years after the death of Luther there were more Catholics than when he was born. And twenty years after the death of Voltaire there were millions less than when he was born.

Blasphemy is what an old dogma screams at a new truth.