reason Quotes

Fix reason firmly in her seat, and call to her tribunal every fact, every opinion. Question with boldness even the existence of a God; because, if there be one, he must more approve of the homage of reason, than that of blindfolded fear.

Reason and free inquiry are the only effectual agents against error.

The moment a person forms a theory, his imagination sees in every object only the traits which favor that theory.

Question with boldness even the existence of a God; because, if there be one, he must more approve of the homage of reason, than that of blind-folded fear.

Resort is had to ridicule only when reason is against us.

It is always better to have no ideas than false ones; to believe nothing, than to believe what is wrong.

The natural cause of the human mind is certainly from credulity to skepticism.

Errors of opinion may be tolerated where reason is left free to combat it.

I am an Epicurean. I consider the genuine (not the imputed) doctrines of Epicurus as containing everything rational in moral philosophy which Greek and Roman leave to us.

The world is indebted for all triumphs which have been gained by reason and humanity over error and oppression.