Conscience is the most sacred of all property; other property depending in part on positive law, the exercise of that being a natural and unalienable right. To guard a man's house as his castle, to pay public and enforce private debts with the most exact faith, can give no title to invade a man's conscience, which is more sacred than his castle, or to withhold from it that debt of protection for which the public faith is pledged by the very nature and original conditions of the social pact.
James MadisonAn alliance or coalition between Government and religion cannot be too carefully guarded against......Every new and successful example therefore of a PERFECT SEPARATION between ecclesiastical and civil matters is of importance........religion and government will exist in greater purity, without (rather) than with the aid of government.
James MadisonThe best reason to be assigned, in this case, for not having made the Constitution more free from a charge of uncertainty in its meaning, is believed to be, that it was not suspected that any such charge would ever take place; and it appears that no such charge did take place, during the early period of the Constitution, when the meaning of its authors could be best ascertained, nor until many of the contemporary lights had in the lapse of time been extinguished. How often does it happen, that a notoriety of intention diminishes the caution against its being misunderstood or doubted!
James Madison