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

But it does me no injury for my neighbor to say there are twenty gods or no God. It neither picks my pocket nor breaks my leg.
-Thomas Jefferson, Notes on Virginia, 1782


Millions of innocent men, women and children, since the introduction of Christianity, have been burnt, tortured, fined and imprisoned; yet we have not advanced one inch towards uniformity.
-Thomas Jefferson, Notes on Virginia, 1782

Believing with you that religion is a matter which lies solely between man and his God, that he owes account to none other for his faith or his worship, that the legislative powers of government reach actions only, and not opinions, I contemplate with sovereign reverence that act of the whole American people which declared that their legislature should 'make no law respecting an establishment of religion, or prohibiting the free exercise thereof,' thus building a wall of separation between church and State.
-Thomas Jefferson, letter to Danbury Baptist Association, CT., Jan. 1, 1802

The whole history of these books [the Gospels] is so defective and doubtful that it seems vain to attempt minute enquiry into it: and such tricks have been played with their text, and with the texts of other books relating to them, that we have a right, from that cause, to entertain much doubt what parts of them are genuine. In the New Testament there is internal evidence that parts of it have proceeded from an extraordinary man; and that other parts are of the fabric of very inferior minds. It is as easy to separate those parts, as to pick out diamonds from dunghills.
-Thomas Jefferson, letter to John Adams, January 24, 1814

Christianity neither is, nor ever was a part of the common law.
-Thomas Jefferson, letter to Dr. Thomas Cooper, February 10, 1814

My opinion is that there would never have been an infidel, if there had never been a priest. The artificial structures they have built on the purest of all moral systems, for the purpose of deriving from it pence and power, revolts those who think for themselves, and who read in that system only what is really there.

-Thomas Jefferson, letter to Mrs. Samuel H. Smith, August, 6, 1816

Priests...dread the advance of science as witches do the approach of daylight and scowl on the fatal harbinger announcing the subversions of the duperies on which they live.
-Thomas Jefferson, Letter to Correa de Serra, April 11, 1820

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

As I understand the Christian religion, it was, and is, a revelation. But how has it happened that millions of fables, tales, legends, have been blended with both Jewish and Christian revelation that have made them the most bloody religion that ever existed?
-- John Adams, letter to FA Van der Kamp, December 27, 1816


Cabalistic Christianity, which is Catholic Christianity, and which has prevailed for 1,500 years, has received a mortal wound, of which the monster must finally die. Yet so strong is his constitution, that he may endure for centuries before he expires.
-- John Adams, letter to Thomas Jefferson, July 16, 1814, from James A Haught, ed, 2000 Years of Disbelief


Let the human mind loose. It must be loose. It will be loose. Superstition and dogmatism cannot confine it.
-- John Adams, letter to his son, John Quincy Adams, November 13, 1816, from James A Haught, ed, 2000 Years of Disbelief

Can a free government possibly exist with the Roman Catholic religion?
-- John Adams, letter to Thomas Jefferson, May 19, 1821, from James A Haught, ed, 2000 Years of Disbelief


God is an essence that we know nothing of. Until this awful blasphemy is got rid of, there never will be any liberal science in the world.
-- John Adams, "this awful blashpemy" that he refers to is the myth of the Incarnation of Christ, from Ira D Cardiff, What Great Men Think of Religion, quoted from James A Haught, ed, 2000 Years of Disbelief

The Treaty of Tripoli
Signed by John Adams

"As the government of the United States is not, in any sense, founded on the Christian religion; as it has in itself no character of enmity against the laws, religion or tranquility of Musselmen [Muslims] ... it is declared ... that no pretext arising from religious opinion shall ever product an interruption of the harmony existing between the two countries....
"The United States is not a Christian nation any more than it is a Jewish or a Mohammedan nation."
-- Treaty of Tripoli (1797), carried unanimously by the Senate and signed into law by John Adams (the original language is by Joel Barlow, US Consul)


"Religious bondage shackles and debilitates the mind and unfits it for every noble enterprise." James Madison -letter to Wm. Bradford, April 1, 1774

"The purpose of separation of church and state is to keep forever from these shores the ceaseless strife that has soaked the soil of Europe in blood for centuries." James Madison -1803 letter objecting use of gov. land for churches



Benjamin Franklin quotes:

"I think vital religion has always suffered when orthodoxy is more regarded than virtue. The scriptures assure me that at the last day we shall not be examined on what we thought but what we did."
- letter to his father, 1738



". . . Some books against Deism fell into my hands. . . It happened that they wrought an effect on my quite contrary to what was intended by them; for the arguments of the Deists, which were quoted to be refuted, appeared to me much stronger than the refutations; in short, I soon became a thorough Deist."
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"I cannot conceive otherwise than that He, the Infinite Father, expects or requires no worship or praise from us, but that He is even infinitely above it."
- "Articles of Belief and Acts of Religion", 1728
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"I wish it (Christianity) were more productive of good works ... I mean real good works ... not holy-day keeping, sermon-hearing ... or making long prayers, filled with flatteries and compliments despised by wise men, and much less capable of pleasing the Deity." - Works, Vol. VII, p. 75
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"If we look back into history for the character of the present sects in Christianity, we shall find few that have not in their turns been persecutors, and complainers of persecution. The primitive Christians thought persecution extremely wrong in the Pagans, but practiced it on one another. The first Protestants of the Church of England blamed persecution in the Romish Church, but practiced it upon the Puritans. They found it wrong in Bishops, but fell into the practice themselves both here (England) and in New England."
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"Lighthouses are more helpful than churches." -in Poor Richard's Almanac
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"The way to see by faith is to shut the eye of reason." -in Poor Richard's Almanac
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"When a religion is good, I conceive it will support itself; and when it does not support itself so that its professors are obliged to call for the help of the civil power, 'tis a sign, I apprehend, of its being a bad one."
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"I looked around for God's judgments, but saw no signs of them."
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"In the affairs of the world, men are saved not by faith, but by the lack of it."



"It is much to be lamented that a man of Franklin's general good character and great influence should have been an unbeliever in Christianity, and also have done as much as he did to make others unbelievers" (Priestley's Autobiography)