All religion is slavery.

All prayers die in the air which they uselessly agitate.

Even in the business of corporations honesty is the best policy, and the companies that have acted in accordance with the highest standard, other things being equal, have reaped the richest harvest.

I want it so that every minister will be not a parrot, not an owl sitting upon a dead limb of the tree of knowledge and hooting the hoots that have been hooted for eighteen hundred years. But I want it so that each one can be an investigator, a thinker; and I want to make his congregation grand enough so that they will not only allow him to think, but will demand that he shall think, and give to them the honest truth of his thought.

By physical liberty I mean the right to do anything which does not interfere with the happiness of another. By intellectual liberty I mean the right to think and the right to think wrong.

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

When a man really believes that it is necessary to do a certain thing to be happy forever, or that a certain belief is necessary to ensure eternal joy, there is in that man no spirit of concession. He divides the whole world into saints and sinners, into believers and unbelievers, into God's sheep and Devil's goats, into people who will be glorified and people who are damned.