Gentlemen tell us, though I can hardly think them serious, that the people of this description can never systematize a rebellion. I will not mention facts, it is sufficient to say that experience speaks a different language--the rigor of the laws, and the impatience of the slaves, will mutually increase each other, until the artifices of the one are exhausted, and until, on the other hand, human nature sinks under its wrongs, or obtains the restoration of its rights. The negroes are in every family; they are waiting on every table; they are present on numerous occasions when the conversation turns on political subjects, and cannot fail to catch ideas that will excite discontentment with their condition. And what is to be expected from the people of this description, but that they will some day, and especially if their importation continues, produce a disturbance that may not be easily quieted, or kindle a flame that may not be readily extinguished. If ten thousand of them have been, as it is said, smuggled into the United States, in the course of a year or two past, and if ten or fifteen thousand of them may now be legally brought annually into our country, for four years to come, it will hardly be imagined that the general interest will be unaffected by such an importation. If they are ignorant, they are, however, susceptible of instruction, and capable of becoming proficients in the art of war. To be convinced of this we have only to look at St. Domingo. There the negroes felt their wrongs, and have avenged them; they learned the rights of man, and asserted them; they have wrested the power from their oppressors, and have become masters of the island. If they are unarmed, they may be armed; European powers have armed the Indians against us, and why may they not arm the negroes? And if they are already as numerous as is consistent with safety, it must be extreme impolicy to import more; it is to accelerate an event which we cannot contemplate without pain. Slavery is not only impolitic as it affects the strength and tranquillity of the United States, but as it prevents their wealth, which can only grow out of society where the arts, sciences, and manufactures, are cultivated and improved. But, sir, I despise to argue on the advantages or disadvantages of what is contrary to the genius of our Government; what is radically unjust, and violates the principles of morality.