Morrison Waite

“ The commerce upon these waters is immense, and its regulation clearly a matter of annational concern. If each State was at liberty to regulate the conduct of carriers while within its jurisdiction, the confusion likely to follow could not but be productive of great inconvenience and unnecessary hardship. Each State could provide for its own passengers and regulate the transportation of its own freight, regardless of the interests of others. Nay more, it could prescribe rules by which the carrier must be governed within the State in respect to passengers and property brought from without. ”

“ Uniformity in the regulations by which he is to be governed from one end to the other of his route is a necessity in his business, and to secure it Congress, which is untrammelled by State lines, has been invested with the exclusive legislative power of determining what such regulations shall be. If this statute can be enforced against those engaged in inter-state commerce, it may be as well against those engaged in foreign ”

“ The line which separates the powers of the States from this exclusive power of Congress is not always distinctly marked, and oftentimes it is not easy to determine on which side a particular case belongs. Judges not unfrequently differ in their reasons for a decision in which they concur. Under such circumstances it would be a useless task to undertake to fix an arbitrary rule by which the line must in all cases be located. It is far better to leave a matter of such delicacy to be settled in each case upon a view of the particular rights involved. ”

“ His disposition of passengers taken up and put down within the State, or taken up within to be carried without, cannot but affect in a greater or less degree those taken up without and brought within, and sometimes those taken up and put down without. A passenger in the cabin set apart for the use of whites without the State must, when the boat comes within, share the accommodations of that cabin with such colored persons as may come on board afterwards, if the law is enforced. ”

“ It was to meet just such a case that the commercial clause in the Constitution was adopted. The river Mississippi passes through or along the borders of ten different States, and its tributaries reach many more. ”