"The next relation is, to the sources from which the ordinary powers of government are to be derived. The House of Representatives will derive its powers from the people of America; and the people will be represented in the same proportion, and on the same principle, as they are in the legislature of a particular State. So far the government is NATIONAL, not FEDERAL. The Senate, on the other hand, will derive its powers from the States, as political and coequal societies; and these will be represented on the principle of equality in the Senate, as they now are in the existing Congress. So far the government is FEDERAL, not NATIONAL. The executive power will be derived from a very compound source."
- James Madison (Federalist Paper No. 39)