John Marshall,
Gibbons v. Ogden (22 U.S. 1) — Opinion of the Court
(1824)
“ If commerce does not include navigation, the government of the Union has no direct power over that subject, and can make no law prescribing what shall constitute American vessels or requiring that they shall be navigated by American seamen. Yet this power has been exercised from the commencement of the government, has been exercised with the consent of all, and has been understood by all to be a commercial regulation. All America understands, and has uniformly understood, the word "commerce" to comprehend navigation. ”
