" The character of such a government ought to secure, first, against foreign invasion; secondly, against dissensions between members of the Union, or seditions in particular States; thirdly, to procure to the several States various blessings of which an isolated situation was incapable; fourthly, it should be able to defend itself against encroachment; and fifthly, to be paramount to the State Constitutions. "

― James Madison , Journal of the Federal Convention: Volumes 1 & 2