“Religion & Govt. will both exist in greater purity, the less they are mixed together. It was the belief of all sects at one time that the establishment of Religion by law, was right & necessary; that the true religion ought to be established in exclusion of every other; And that the only question to be decided was which was the true religion.
“The example of Holland proved that a toleration of sects, dissenting from the established sect, was safe & even useful. The example of the Colonies, now States, which rejected religious establishments altogether, proved that all Sects might be safely & advantageously put on a footing of equal & entire freedom; and a continuance of their example since the declaration of Independence, has shewn that its success in Colonies was not to be ascribed to their connection with the parent Country.”
– James Madison – Letter to Edward Livingston (excerpt); July 10th, 1822.