Much is said by Southern people about the affection of slaves for their masters and mistresses; and a part of it, at least, is true. A plot for an uprising could scarcely be devised and communicated to twenty individuals before some one of them, to save the life of a favorite master or mistress, would divulge it. This is the rule; and the slave revolution in Hayti was not an exception to it, but a case occurring under peculiar circumstances. The gunpowder plot of British history, though not connected with slaves, was more in point. In that case, only about twenty were admitted to the secret; and yet one of them, in his anxiety to save a friend, betrayed the plot to that friend, and, by consequence, averted the calamity. Occasional poisonings from the kitchen, and open or stealthy assassinations in the field, and local revolts, extending to a score or so, will continue to occur as the natural results of slavery; but no general insurrection of slaves, as I think, can happen in this country for a long time. Whoever much fears or much hopes for such an event will be alike disappointed.

In the language of Mr. Jefferson, uttered many years ago, "It is still in our power to direct the process of emancipation and deportation peaceably, and in such slow degrees as that the evil will wear off insensibly, and their places be, pari passu, filled up by free white laborers. If, on the contrary, it is left to force itself on, human nature must shudder at the prospect held up."

Mr. Jefferson did not mean to say, nor do I, that the power of emancipation is in the Federal Government. He spoke of Virginia; and, as to the power of emancipation, I speak of the slave holding States only. The Federal Government, however, as we insist, has the power of restraining the extension of the institution—the power to insure that a slave insurrection shall never occur on any American soil which is now free from slavery.

John Brown's effort was peculiar. It was not a slave insurrection. It was an attempt by white men to get up a revolt among slaves, in which the slaves refused to participate. In fact, it was so absurd that the slaves, with all their ignorance, saw plainly enough it could not succeed. That affair, in its philosophy, corresponds with the many attempts related in history at the assassination of kings and emperors. An enthusiast broods over the oppression of a people till he fancies himself commissioned by Heaven to liberate them. He ventures the attempt, which ends in little else than his own execution. Orsini's attempt on Louis Napoleon and John Brown's attempt at Harper's Ferry were, in their philosophy, precisely the same. The eagerness to cast blame on old England in the one case, and on New England in the other, does not disprove the sameness of the two things.

And how much would it avail you, if you could, by the use of John Brown, Helper's Book, and the like, break up the Republican organization? Human action can be modified to some extent, but human nature cannot be changed. There is a judgment and a feeling against slavery in this nation, which cast at least a million and a half of votes. You cannot destroy that judgment and feeling—that sentiment—by breaking up the political organization which rallies around it. You can scarcely scatter and disperse an army which has been formed into order in the face of your heaviest fire; but if you could, how much would you gain by forcing the sentiment which created it out of the peaceful channel of the ballot-box, into some other channel? What would that other channel probably be? Would the number of John Browns be lessened or enlarged by the operation?

But you will break up the Union rather than submit to a denial of your constitutional rights.

That has a somewhat reckless sound; but it would be palliated, if not fully justified, were we proposing, by the mere force of numbers, to deprive you of some right plainly written down in the Constitution. But we are proposing no such thing.

When you make these declarations, you have a specific and well-understood allusion to an assumed constitutional right of yours to take slaves into the Federal Territories, and to hold them there as property. But no such right is specifically written in the Constitution. That instrument is literally silent about any such right. We, on the contrary, deny that such a right has any existence in the Constitution, even by implication.

Your purpose, then, plainly stated, is that you will destroy the Government unless you be allowed to construe and enforce the Constitution as you please on all points in dispute between you and us. You will rule or ruin, in all events.

This, plainly stated, is your language. Perhaps you will say the Supreme Court has decided the disputed constitutional question in your favor. Not quite so. But, waiving the lawyer's distinction between dictum and decision, the court have decided the question for you in a sort of way. The court have substantially said it is your constitutional right to take slaves into the Federal Territories, and to hold them there as property. When I say, the decision was made in a sort of way, I mean it was made in a divided court, by a bare majority of the judges, and they not quite agreeing with one another in the reasons for making it; that it is so made as that its avowed supporters disagree with one another about its meaning, and that it was mainly based upon a mistaken statement of fact—the statement in the opinion that "the right of property in a slave is distinctly and expressly affirmed in the Constitution."