quotations.

"Christianity is the most perverted system that ever shone on man." 
--Thomas Jefferson
"During almost fifteen centuries has the legal establishment of Christianity been on trial. What has been its fruit? More or less, in all places, pride and indolence in the clergy, ignorance and servility in the laity; in both, superstition, bigotry and persecution." 
--James Madison
"This would be the best of all possible worlds, if there were no religion in it." 
--John Adams
"As the Government of the United States of America is not, in any sense, founded on the Christian religion; as it has itself no character of enmity against the laws, religion, or tranquillity, of Musselmen; and as the said States never have entered into any war or act of hostility against any Mehomitan nation, it is declared by the parties that no pretext arising from religious opinions shall ever produce an interruption of the harmony existing between the two countries." 
--George Washington, in a treaty with Tripoli signed by John Adams.
"It was, of course, a lie what you read about my religious convictions, a lie which is being systematically repeated. I do not believe in a personal God and I have never denied this but expressed it clearly. If something is in me which can be called religious then it is the unbounded admiration for the structure of the world as far as science can reveal it." 
--Albert Einstein
"Sire, I had no need of that hypothesis." 
--Pierre-Simon Laplace, when Napoleon wondered how the famous mathematician had managed to write his book without mentioning God. 
"The religion of one age is the literary entertainment of the next." 
--Ralph Waldo Emerson