In the fourth place, the Missouri decision taught the inhabitants of the older Commonwealths that the West could not be held in a provincial or quasi-provincial status; that it must be carved up and formed into Commonwealths having the same powers and privileges as the older Commonwealths; and that, therefore, the political centre of the United States was bound to move westward, and the East was ultimately to come, in large degree, under the influence of the West. It was this which has helped powerfully to carry the brain and the money of the East to the West, and is making in the West a new, and, in some respects, more enterprising, East. Finally, the Missouri decision taught the South that there was a provision in the Constitution of the United {106} States which probably made it possible for the Northern Commonwealths to force, through the power of the general Government, a class of persons upon the Southern Commonwealths, in the enjoyment of the full rights of citizenship, whom these Commonwealths did not and would not recognize as citizens in any respect; and that there was a growing disposition at the North to make an advance against slavery at every possible point. The effect of this conviction was most baleful both upon the spirit of the masters and the status of the slaves. It created that resentment in the minds of the Southerners against interference in their domestic affairs, which closed their ears to all arguments against slavery, and it moved them to the enactment of measures in their several Commonwealths for the purpose of keeping the slaves under stricter discipline and in denser ignorance. It increased vastly, if it did not introduce, that utter misunderstanding of each other's feelings and motives between the people of the two sections, which made it possible for the people of the North to believe, finally, that the story of "Uncle Tom's Cabin" was the sober truth, and the general rule of conduct of master toward slave in the South, and for the people of the South to believe that jealousy of riches and comfort was the sole spirit which prompted the attacks of the North upon slavery--a misunderstanding, therefore, which proved irreconcilable so long as the subject of it remained.