Whoever increases the sum of human joy, is a worshiper. He who adds to the sum of human misery, is a blasphemer..

Only those who live on the labor of the ignorant are the enemies of science. Real love and real religion are in no danger from science. The more we k….

The more a man knows, the more willing he is to learn-the less a man knows, the more positive he is that he knows everything..

An infinite God ought to be able to protect Himself, without going in partnership with State Legislatures..

I hate above all things a cross man. What right has he to murder the sunshine of a day? What right has he to assassinate the Joy of life? When you go….

Christianity has made more lunatics than it ever provided asylums for..

We all know that men in moderate circumstances can have just as comfortable houses as the richest, just as comfortable clothing, just as good food. T….

If the reason I give is a good one, you will act upon it. If it is a bad one I cannot make it better by piling epithet upon epithet. There is no logi….

We can be as honest as we are ignorant. If we are, when asked what is beyond the horizon of the known, we must say that we do not know..

The history of intellectual progress is written in the lives of infidels..

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 larg….

For the first time I understood the dogma of eternal pain... For the first time my imagination grasped the height and depth of the Christian horror. ….

Life is a narrow vale between the cold and barren peaks of two eternities. We strive in vain to look beyond the heights. We cry aloud-and the only an….

I do not believe in loving enemies; I have pretty hard work to love my friends. Neither do I believe in revenge. No man can afford to keep the viper ….

Intellect, without heart, is infinitely cruel. . . ..

I would rather be a beggar and spend my money like a king, than be a king and spend money like a beggar..

Who can estimate the misery that has been caused by this infamous doctrine of eternal punishment? Think of the lives it has blighted-of the tears it ….

I have one sentiment for soldiers living and dead: cheers for the living; tears for the dead..

We rise by lifting others..

Give me the storm and tempest of thought and action, rather than the dead calm of ignorance and faith! Banish me from Eden when you will; but first l….

He who commends the brutalities of the past, sows the seeds of future crimes..