There is nothing like the dead cold hand of the past to take down our tumid egotism and lead us into the solemn flow of the life of our race.

This is a court of law, not a court of justice.

Pretty much all the honest truth-telling there is in the world is done by children.

The ultimate good desired is better reached by free trade in ideas [and] the best test of truth is the power of the thought to get itself accepted in the competition of the market.

Certainty generally is illusion, and repose is not the destiny of man.

Life, not the parson, teaches conduct.

The mark of a civilized man is his willingness to re-examine his most cherished beliefs.