For myself, Sir, I do not admit the competency of South Carolina, or any other State, to prescribe my constitutional duty; or to settle, between me and the people, the validity of laws of Congress for which I have voted. I decline her umpirage. I have not sworn to support the Constitution according to her construction of its clauses. I have not stipulated, by my oath of office or otherwise, to come under any responsibility, except to the people, and those whom they have appointed to pass upon the question, whether laws, supported by my votes, conform to the Constitution of the country. And, Sir, if we look to the general nature of the case, could anything have been more preposterous than to make a government for the whole Union, and yet leave its powers subject, not to one interpretation, but to thirteen or twenty-four interpretations? Instead of one tribunal, established by all, responsible to all, with power to decide for all, shall constitutional questions be left to four-and-twenty popular bodies, each at liberty to decide for itself, and none bound to respect the decisions of others,--and each at liberty, too, to give a new construction on every new election of its own members? Would anything, with such a principle in it, or rather with such a destitution of all principle, be fit to be called a government? No, Sir. It should not be denominated a Constitution. It should be called, rather, a collection of topics for everlasting controversy; heads of debate for a disputatious people. It would not be a government. It would not be adequate to any practical good, or fit for any country to live under. To avoid all possibility of being misunderstood, allow me to repeat again, in the fullest manner, that I claim no powers for the government by forced or unfair construction. I admit that it is a government of strictly limited powers; of enumerated, specified, and particularized powers; and that whatsoever is not granted, is withheld. But notwithstanding all this, and however the grant of powers may be expressed, its limit and extent may yet, in some cases, admit of doubt; and the general government would be good for nothing, it would be incapable of long existing, if some mode had not been provided in which those doubts, as they should arise, might be peaceably, but authoritatively, solved. And now, Mr. President, let me run the honorable gentleman's doctrine a little into its practical application. Let us look at his probable _modus operandi_. If a thing can be done, an ingenious man can tell how it is to be done, and I wish to be informed how this State interference is to be put in practice, without violence, bloodshed, and rebellion.