clipped from: www.aynrand.org   
John Adams (the second President of the United States)

"The government of the United States is not in any sense founded on the Christian religion."

"Twenty times in the course of my late reading, have I been upon the point of breaking out, 'this would be the best of all possible worlds, if there were no religion in it.'"

Thomas Jefferson

"...an amendment was proposed by inserting the words, 'Jesus Christ...the holy author of our religion,' which was rejected 'By a great majority in proof that they meant to comprehend, within the mantle of its protection, the Jew and the Gentile, the Christian and the Mohammedan, the Hindoo and the Infidel of every denomination.'"

"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 Minerva in the brain of Jupiter."

James Madison

"Religion and government will both exist in greater purity, the less they are mixed together."