As compacts, charters of government are superior in obligation to all others, because they give effect to all others. As truths, none can be more sacred, because they are bound, on the conscience by the religious sanctions of an oath. As metes and bounds of government, they transcend all other land-marks, because every public usurpation is an encroachment on the private right, not of one, but of all.
Letters and other writings of James Madison (ed. 1865)