Sir, this injustice no otherwise surprises me, than as it is committed here, and committed without the slightest pretence of ground for it. I say it only surprises me as being done here; for I know full well that it is, and has been, the settled policy of some persons in the South, for years, to represent the people of the North as disposed to interfere with them in their own exclusive and peculiar concerns. This is a delicate and sensitive point in Southern feeling; and of late years it has always been touched, and generally with effect, whenever the object has been to unite the whole South against Northern men or Northern measures. This feeling, always carefully kept alive, and maintained at too intense a heat to admit discrimination or reflection, is a lever of great power in our political machine. It moves vast bodies, and gives to them one and the same direction. But it is without adequate cause, and the suspicion which exists is wholly groundless. There is not, and never has been, a disposition in the North to interfere with these interests of the South. Such interference has never been supposed to be within the power of government; nor has it been in any way attempted. The slavery of the South has always been regarded as a matter of domestic policy, left with the States themselves, and with which the Federal government had nothing to do. Certainly, Sir, I am, and ever have been, of that opinion. The gentleman, indeed, argues that slavery, in the abstract, is no evil. Most assuredly I need not say I differ with him, altogether and most widely, on that point. I regard domestic slavery as one of the greatest evils, both moral and political. But whether it be a malady, and whether it be curable, and if so, by what means; or, on the other hand, whether it be the _vulnus immedicabile_ of the social system, I leave it to those whose right and duty it is to inquire and to decide. And this I believe, Sir, is, and uniformly has been, the sentiment of the North. [Sidenote: The public lands.] [Sidenote: Webster's broad view of national relations to internal improvements.] [Sidenote: Public works are bonds of union.]