The few have said, Think! The many have said, Believe! The first doubt was the womb and cradle of progress, and from the first doubt, man has continued to advance.

Intellectual liberty [is] the right to think right and the right to think wrong. Thought is the means by which we endeavor to arrive at truth.

An infinite God ought to be able to protect himself, without going in partnership with State Legislatures. Certainly he ought not so to act that laws become necessary to keep him from being laughed at. No one thinks of protecting Shakespeare from ridicule, by the threat of fine and imprisonment.

Martyrdom, as a rule, establishes the sincerity of the martyr, never the correctness of his thought. Things are true or false in themselves.

What light is to the eyes - what air is to the lungs - what love is to the heart, liberty is to the soul of man.

Character survives; goodness lives; love is immortal.

He [The Improved Man] will enjoy not only the sunshine of life, but will bear with fortitude the darkest days. He will have no fear of death. About the grave, there will be no terrors, and his life will end as serenely as the sun rises.