Anger is a wind which blows out the lamp of the mind.

All religion is slavery.

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.

There are treasures in books that all the money in the world cannot buy, but the poorest laborer can have for nothing.

As long as every question is answered by the word "God," scientific inquiry is simply impossible.

This, in my judgment, is the highest philosophy: First, do not regret having lost yesterday; second, do not fear that you will lose tomorrow; third, enjoy today.

Some president wishes to be re-elected, and thereupon speaks about the Bible as "the corner-stone of American Liberty." This sentence is a mouth large enough to swallow any church, and from that time forward the religious people will be citing that remark of the politician to substantiate the inspiration of the Scriptures.