The ethical aspects of Slavery are not and cannot be the subject of consideration with any party which proposes to act under the Constitution of the United States. Nor are they called upon to consider its ethnological aspect. Their concern with it is confined to the domain of politics, and they are not called to the discussion of abstract principles, but of practical measures. The question, even in its political aspect, is one which goes to the very foundation of our theories and our institutions. It is simply, --Shall the course of the Republic be so directed as to subserve the interests of aristocracy or of democracy? Shall our Territories be occupied by lord and serf, or by intelligent freemen?--by laborers who are owned, or by men who own themselves? The Republican Party has no need of appealing to prejudice or passion. In this case, there is a meaning in the phrase, Manifest Destiny. America is to be the land of the workers, the country where, of all others, the intelligent brain and skilled hand of the mechanic, and the patient labor of those who till their own fields, are to stand them in greatest stead. We are to inaugurate and carry on the new system which makes Man of more value than Property, which will one day put the living value of industry above the dead value of capital. Our republic was not born under Cancer, to go backward. Perhaps we do not like the prospect? Perhaps we love the picturesque charm with which novelists and poets have invested the old feudal order of things? That is not the question. This New World of ours is to be the world of great workers and small estates. The freemen whose capital is their two hands must inevitably become hostile to a system clumsy and barbarous like that of Slavery, which only carries to its last result the pitiless logic of selfishness, sure at last to subject the toil of the many to the irresponsible power of the few.