Meanwhile, for more than a generation, an assumption of Constitutional Law, hardly less baleful, had become rooted side by side with Slavery, so that the two shot up in rank luxuriance together. It was assumed, that, under the Constitution, a State was privileged at any time, in the exercise of its own discretion, to withdraw from the Union. This absurdity found little favor at first, even among the representatives of Slavery. To say that two and two make five could not be more irrational. But custom and constant repetition gradually produced an impression, until, at last, all the maddest for Slavery were the maddest also for this disorganizing ally.

It was then, conjoined with this constitutional assumption, that the assumption for Slavery grew into noxious vigor, so that, at last, when Mr. Lincoln was elected, it broke forth in flagrant war; but the war was declared in the name of State Rights.

Therefore there are two apparent rudiments to this war. One is Slavery, and the other is State Rights. But the latter is only a cover for the former. If Slavery were out of the way, there would be no trouble from State Rights.

The war, then, is for Slavery, and nothing else. It is an insane attempt by arms to vindicate the lordship asserted in debate. With madcap audacity it seeks to install this Barbarism as the truest Civilization. Slavery is announced as the “corner-stone” of the new edifice. This is enough.

The question is presented between Barbarism and Civilization,—not merely between two different forms of Civilization, but between Barbarism on the one side and Civilization on the other side.

Such is the issue, simply stated. On the one side are women and children at the auction-block, families rudely separated, human flesh lacerated and seamed by the bloody scourge, labor extorted without wages; and all this frightful, many-sided wrong is the declared foundation of a mock Commonwealth. On the other side is the Union of our fathers, with the image of Liberty on its coin and the sentiment of Liberty in its Constitution, now arrayed under a patriotic Government, which insists that no such mock Commonwealth, having such declared foundation, shall be permitted on the national territory, purchased with money and blood, to impair the unity of our jurisdiction, and to insult the moral sense of mankind.

Therefore the battle waged by the Union is for Civilization itself, and it must have aid and God-speed from all not openly for Barbarism. Every one must give his best efforts, and especially the young men to whom I now appeal.

Charles Sumner.

Washington, 4th July, 1863.