They knew no better, but I do not propose to follow the example of a barbarian because he was honestly a barbarian.

The first step is for man to cease to be the slave of man. The second, is to cease to be the slave of the monsters of his own creation, the ghosts and phantoms of the air.

Secularism is a religion, a religion that is understood. It has no mysteries, no mumblings, no priests, no ceremonies, no falsehoods, no miracles, and no persecutions.

One thing I do know, and that is, that neither hope, nor fear, belief, nor denial, can change the fact. It is as it is, and it will be as it must be.

The Church has always been willing to swap off treasures in heaven for cash down.

The way to be happy is to make others so.

The hope of science is the perfection of the human race. The hope of theology is the salvation of a few, and the damnation of almost everybody.