Popular government has not yet been proved to guarantee, always and everywhere, good government.

The world is a better place to live in because it contains human beings who will give up ease and security in order to do what they themselves think worth doing. They do the useless, brave, noble, divinely foolish, and the very wisest things that are done by Man. And what they prove to themselves and to others is that Man is no mere creature of his habits, no automaton in his routine, but that in the dust of which he is made there is also fire, lighted now and then by great winds from the sky.

The private citizen, beset by partisan appeals for the loan of his Public Opinion, will soon see, perhaps, that these appeals are not a compliment to his intelligence, but an imposition on his good nature and an insult to his sense of evidence.

The study of error is not only in the highest degree prophylactic, but it serves as a stimulating introduction to the study of truth.

The decay of decency in the modern age, the rebellion against law and good faith, the treatment of human beings as things, as the mere instruments of power and ambition, is without a doubt the consequence of the decay of the belief in man as something more than an animal animated by highly conditioned reflexes and chemical reactions. For, unless man is something more than that, he has no rights that anyone is bound to respect, and there are no limitations upon his conduct which he is bound to obey.

Freedom to speak... can be maintained only by promoting debate.

The unexamined life, said Socrates, is unfit to be lived by man. This is the virtue of liberty, and the ground on which we may justify our belief in it, that it tolerates error in order to serve truth.