Question with boldness even the existence of a god; because if there be one he must approve of the homage of reason more than that of blindfolded fear.
-Thomas Jefferson, letter to Peter Carr, August 10, 1787
History, I believe, furnishes no example of a priest-ridden people maintaining a free civil government. This marks the lowest grade of ignorance of which their civil as well as religious leaders will always avail themselves for their own purposes.
-Thomas Jefferson to Alexander von Humboldt, Dec. 6, 1813.
Christianity neither is, nor ever was a part of the common law.
-Thomas Jefferson, letter to Dr. Thomas Cooper, February 10, 1814
And the day will come when the mystical generation of Jesus, by the supreme being as his father in the womb of a virgin will be classed with the fable of the generation of Minerve in the brain of Jupiter. But may we hope that the dawn of reason and freedom of thought in these United States will do away with this artificial scaffolding, and restore to us the primitive and genuine doctrines of this most venerated reformer of human errors.
-Thomas Jefferson, Letter to John Adams, April 11, 1823
It is between fifty and sixty years since I read it [the Apocalypse], and I then considered it merely the ravings of a maniac, no more worthy nor capable of explanation than the incoherences of our own nightly dreams.
-Thomas Jefferson, letter to General Alexander Smyth, Jan. 17, 1825
"ravings of a maniac"
Tom was prescient.