That is the Idea of Slavery. It has never got a national expression in America; it has never been laid down as a Principle in any act of the American people, nor in any single State, so far as I know. All profess the opposite; but it is involved in the Measures of both State and Nation. This Idea is founded in the selfishness of man; it is atheistic. The idea must lead to a corresponding government; that will be unjust in its substance,--for it will depend not on natural right, but on personal force; not on the Constitution of the Universe, but on the compact of men. It is the abnegation of God in the universe and of conscience in man. Its form will be despotism,--the government of all, by a part, for the sake of a part. It may be a single-headed despotism, or a despotism of many heads; but whether a Cyclops or a Hydra, it is alike "the abomination which maketh desolate." Its ultimate consequence is plain to foresee--poverty to a nation, misery, ruin. * * * * * These two Ideas are now fairly on foot. They are hostile; they are both mutually invasive and destructive. They are in exact opposition to each other, and the nation which embodies these two is not a figure of equilibrium. As both are active forces in the minds of men, and as each idea tends to become a fact--a universal and exclusive fact,--as men with these ideas organize into parties as a means to make their idea into a fact,--it follows that there must not only be strife amongst philosophical men about these antagonistic Principles and Ideas, but a strife of practical men about corresponding Facts and Measures. So the quarrel, if not otherwise ended, will pass from words to what seems more serious; and one will overcome the other. So long as these two Ideas exist in the nation as two political forces, there is no national unity of Idea, of course no unity of action. For there is no centre of gravity common to Freedom and Slavery. They will not compose an equilibrious figure. You may cry "Peace! Peace!" but so long as these two antagonistic Ideas remain, each seeking to organize itself and get exclusive power, there is no peace; there can be none.