"The only way to wisdom is through fearless questioning."

"Fables should be taught as fables, myths as myths, and miracles as poetic fancies. To teach superstitions as truths is a most terrible thing."

"The mind is its own place, and in itself can make a heaven of hell, a hell of heaven."

"All formal dogmatic religions are fallacious and must never be accepted by self-respecting persons as final."

"To rule by fettering the mind through fear of punishment in another world is just as base as to use force."