Slavery existed before the formation of this Union. It derived from the Constitution that recognition which it would not have enjoyed without the confederation. If the States had not united together, there would have been no obligation on adjoining States to regard any species of property unknown to themselves.
Every one must understand that, whatever be the evil of slavery, it is not increased by its diffusion. Every one familiar with it knows that it is in proportion to its sparseness that it becomes less objectionable. Wherever there is an immediate connexion between the master and slave, whatever there is of harshness in the system is diminished.