The American Constitution is remarkable for its simplicity; but it can only suffice a people habitually correct in their actions, and would be utterly inadequate to the wants of a different nation. Change the domestic habits of the Americans, their religious devotion, and their high respect for morality, and it will not be necessary to change a single letter in the Constitution in order to vary the whole form of their government.

The Americans: In Their Moral, Social, and Political Relations (ed. 1837)