Whatever may be the latitude in which the word "persons" is capable of being received, it is not denied that the word "importation" indicates a bringing in from a jurisdiction foreign to the United States. The two termini of the importation, here spoken of, are a foreign country and the American Union--the first the _terminus a quo_, the second the _terminus ad quem_. The word migration stands in simple connexion with it, and of course is left to the full influence of that connection. The natural conclusion is, that the same termini belong to each, or, in other words, that if the importation must be abroad, so also must be the migration--no other termini being assigned to the one which are not manifestly characteristic of the other. This conclusion is so obvious, that to repel it, the word migration requires, as an appendage, explanatory phraseology, giving to it a different beginning from that of importation. To justify the conclusion that it was intended to mean a removal from State to State, each within the sphere of the constitution in which it is used, the addition of the words from one to another State in this Union, were indispensable. By the omission of these words, the word "migration" is compelled to take every sense of which it is fairly susceptible from its immediate neighbor, "importation." In this view it means a coming, as "importation" means a bringing, from a foreign jurisdiction into the United States. That it is susceptible of this meaning, nobody doubts. I go further. It can have no other meaning in the place in which it is found. It is found in the Constitution of this Union--which, when it speaks of migration as of a general concern, must be supposed to have in view a migration into the domain which itself embraces as a general government. Migration, then, even if it comprehends slaves, does not mean the removal of them from State to State, but means the coming of slaves from places beyond their limits and their power. And if this be so, the gentlemen gain nothing for their argument by showing that slaves were the objects of this term.