Setting themselves against reason, as often as reason is against them. — Reason

"The reasonable man adapts himself to the world; the unreasonable one persists in trying to adapt the world to himself. Therefore all progress depends on the unreasonable man."

"He, who will not reason, is a bigot; he, who cannot, is a fool; and he, who dares not, is a slave."

"Reason ... contradicts the established order of men and things on behalf of existing societal forces that reveal the irrational character of this order—for “rational” is a mode of thought and action which is geared to reduce ignorance, destruction, brutality, and oppression."

"…He is a weak ruler who needs religion to uphold his government; it is as if he would catch his people in a trap. My people are going to learn the principles of democracy, the dictates of truth and the teachings of science. Superstition must go. Let them worship as they will; every man can follow his own conscience, provided it does not interfere with sane reason or bid him against the liberty of his fellow-men."

"Then old age and experience, hand in hand, Lead him to death, make him to understand, After a search so painful and so long, That all his life he has been in the wrong. Huddled in dirt the reasoning engine lies, Who was so proud, so witty, and so wise."

"If you will not hear reason, she will surely rap your knuckles."