"When an instrument admits two constructions, the one safe, the other dangerous, the one precise, the other indefinite, I prefer that which is safe & precise. I had rather ask an enlargement of power from the nation, where it is found necessary, than to assume it by a construction which would make our powers boundless. Our peculiar security is in possession of a written Constitution. Let us not make it a blank paper by construction. I say the same as to the opinion of those who consider the grant of the treaty making power as boundless. If it is, then we have no Constitution. If it has bounds, they can be no others than the definitions of the powers which that instrument gives. It specifies & delineates the operations permitted to the federal government, and gives all the powers necessary to carry these into execution."
- Thomas Jefferson, 'Letter to Wilson Carey Nicholas', September 7, 1803