The man who does not do his own thinking is a slave, and is a traitor to himself and to his fellow-men.

I believe in the religion of reason -- the gospel of this world; in the development of the mind, in the accumulation of intellectual wealth, to the end that man may free himself from superstitious fear, to the end that he may take advantage of the forces of nature to feed and clothe the world.

The record of a generous life runs like a vine around the memory of our dead, and every sweet unselfish act is now a perfumed flower.

If you have ever clothed another with woe, as with a garment of pain, you will never be quite as happy as though you had not done that thing.

All that is necessary, as it seems to me, to convince any reasonable person that the Bible is simply and purely of human invention - of barbarian invention - is to read it. Read it as you would any other book; think of it as you would of any other; get the bandage of reverence from your eyes; drive from your heart the phantom of fear; push from the throne of your brain the cowled form of superstition - then read the Holy Bible, and you will be amazed that you ever, for one moment, supposed a being of infinite wisdom, goodness and purity, to be the author of such ignorance and of such atrocity.

It is like most other ancient books - a mingling of falsehood and truth, of philosophy and folly - all written by men, and most of the men only partially civilized. Some of its laws are good - some infinitely barbarous. None of the miracles related were performed. . . . Take out the absurdities, the miracles, all that pertains to the supernatural - all the cruel and barbaric laws - and to the remainder I have no objection. Neither would I have for it any great admiration.

Most people can bear adversity. But if you wish to know what a man really is, give him power.