You ask if I mean to publish anything on the subject of a letter of mine to my friend Charles Thompson? Certainly not. I write nothing for publication, and last of all things should it be on the subject of religion. On the dogmas of religion as distinguished from moral principles, all mankind, from the beginning of the world to this day, have been quarrelling, fighting, burning and torturing one another, for abstractions unintelligible to themselves and to all others, and absolutely beyond the comprehension of the human mind. Were I to enter on that arena, I should only add an unit to the number of Bedlamites.
Letter to Mathew Carey (11 November 1816). Published in The Works of Thomas Jefferson in Twelve Volumes, Federal Edition, Paul Leicester Ford, ed., New York: G. P. Putnam's Sons, 1904, Vol. 12, p. 42.