Joe

“Every new & successful example therefore of a perfect separation between ecclesiastical and civil matters, is of importance. And I have no doubt that every new example, will succeed, as every past one has done, in shewing that religion & Govt. will both exist in greater purity, the less they are mixed together.

[Letter to Edward Livingston, 10 July 1822 - Writings 9:100--103]”
― James Madison, Writings

“The government of the United States is not, in any sense, founded on the Christian religion.”
― John Adams

“It does me no injury for my neighbour to say there are 20 gods or no God. It neither picks my pocket nor breaks my leg.”
― Thomas Jefferson, Notes on the State of Virginia & Confession of Nat Turner

“But our rulers can have authority over such natural rights only as we have submitted to them. The rights of conscience we never submitted, we could not submit. We are answerable for them to our God. The legitimate powers of government extend to such acts only as are injurious to others. But it does me no injury for my neighbour to say there are twenty gods, or no god. It neither picks my pocket nor breaks my leg. If it be said, his testimony in a court of justice cannot be relied on, reject it then, and be the stigma on him. Constraint may make him worse by making him a hypocrite, but it will never make him a truer man. It may fix him obstinately in his errors, but will not cure them. Reason and free enquiry are the only effectual agents against error.”
― Thomas Jefferson, Notes on the State of Virginia