We rise by lifting others.

Whenever a man believes that he has the exact truth from God, there is in that man no spirit of compromise. He has not the modesty born of the imperfections of human nature; he has the arrogance of theological certainty and the tyranny born of ignorant assurance. Believing himself to be the slave of God, he imitates his master, and of all tyrants the worst is a slave in power.

Happiness is not a reward - it is a consequence. Suffering is not a punishment - it is a result.

Hope is the consolation of the world.

The intellectual advancement of man depends on how often he can exchange an old superstition for a new truth.

All laws for the purpose of making man worship God, are born of the same spirit that kindled the fires of the auto da fe, and lovingly built the dungeons of the Inquisition. All laws defining and punishing blasphemy - making it a crime to give your honest ideas about the Bible, or to laugh at the ignorance of the ancient Jews, or to enjoy yourself on the Sabbath, or to give your opinion of Jehovah, were passed by impudent bigots, and should be at once repealed by honest men. An infinite God ought to be able to protect himself, without going in partnership with State Legislatures.

Small people delight in what they call consistency-that is, it gives them immense pleasure to say that they believe now exactly as they did ten years ago. This simply amounts to a certificate that they have not grown-that they have not developed-and that they know just as little now as they ever did. The highest possible conception of consistency is to be true to the knowledge of today, without the slightest reference to what your opinion was years ago.