Mr. President, if we are to receive the Constitution as the text, and then to lay down in its margin the contradictory commentaries which have been, and which may be, made by different States, the whole page would be a polyglot indeed. It would speak with as many tongues as the builders of Babel, and in dialects as much confused, and mutually as unintelligible. The very instance now before us presents a practical illustration. The law of the last session is declared unconstitutional in South Carolina, and in obedience to it is refused. In other States, it is admitted to be strictly constitutional. You walk over the limit of its authority, therefore, when you pass a State line. On one side it is law, on the other side a nullity; and yet it is passed by a common government, having the same authority in all the States. Such, Sir, are the inevitable results of this doctrine. Beginning with the original error, that the Constitution of the United States is nothing but a compact between sovereign States; asserting, in the next step, that each State has a right to be its own sole judge of the extent of its own obligations, and consequently of the constitutionality of laws of Congress; and, in the next, that it may oppose whatever it sees fit to declare unconstitutional, and that it decides for itself on the mode and measure of redress,--the argument arrives at once at the conclusion, that what a State dissents from, it may nullify; what it opposes, it may oppose by force; what it decides for itself, it may execute by its own power; and that, in short, it is itself supreme over the legislation of Congress, and supreme over the decisions of the national judicature; supreme over the constitution of the country, supreme over the supreme law of the land. However it seeks to protect itself against these plain inferences, by saying that an unconstitutional law is no law, and that it only opposes such laws as are unconstitutional, yet this does not in the slightest degree vary the result; since it insists on deciding this question for itself; and, in opposition to reason and argument, in opposition to practice and experience, in opposition to the judgment of others, having an equal right to judge, it says, only, "Such is my opinion, and my opinion shall be my law, and I will support it by my own strong hand. I denounce the law; I declare it unconstitutional; that is enough; it shall not be executed. Men in arms are ready to resist its execution. An attempt to enforce it shall cover the land with blood. Elsewhere it may be binding; but here it is trampled under foot." This, Sir, is practical nullification. And now, Sir, against all these theories and opinions, I maintain,-- 1. That the Constitution of the United States is not a league, confederacy, or compact between the people of the several States in their sovereign capacities; but a government proper, founded on the adoption of the people, and creating direct relations between itself and individuals.