We know that among the Romans, about the Augustan age especially, the condition of their slaves was much more deplorable than that of the blacks on the continent of America. The two sexes were confined in separate apartments, because to raise a child cost the master more than to buy one. Cato, for a very restricted indulgence to his slaves in this particular, took from them a certain price. But in this country the slaves multiply as fast as the free inhabitants.... The same Cato, on a principle of economy, always sold his sick and superannuated slaves. He gives it as a standing precept to a master visiting his farm, to sell his old oxen, old wagons, old tools, old and diseased servants, and everything else become useless.... The American slaves cannot enumerate this among the injuries and insults they receive. It was the common practice to expose in the island AEsculapius, in the Tiber, diseased slaves whose cure was likely to become tedious. The Emperor Claudius, by an edict, gave freedom to such of them as should recover, and first declared that if any person chose to kill rather than expose them, it should be deemed homicide. The exposing them is a crime of which no instance has existed with us; and were it to be followed by death, it would be punished capitally. We are told of a certain Vedius Pollio, who, in the presence of Augustus, would have given a slave as food to his fish for having broken a glass. With the Romans, the regular method of taking the evidence of their slaves was under torture. Here it has been thought better never to resort to their evidence. When a master was murdered, all his slaves, in the same house, or within hearing, were condemned to death. Here punishment falls on the guilty only, and as precise proof is required against his as against a freeman. Yet notwithstanding these and other discouraging circumstances among the Romans, their slaves were often their rarest artists. They excelled, too, in science, insomuch as to be usually employed as tutors to their master's children. Epictetus, Terence, and Phoedrus, were slaves. But they were of the race of whites. It is not their condition then, but nature which has produced the distinction. Whether further observation will or will not verify the conjecture, that nature has been less bountiful to them in the endowments of the head, I believe that in those of the heart she will be found to have done them justice.[64]