Book 3.18

It has, however, been doubted by Hecaton and some other writers, whether a slave can bestow a benefit upon his master. Some distinguish between benefits, duties, and services, calling those things benefits which are bestowed by a stranger--that is, by one who could discontinue them without blame--while duties are performed by our children, our wives, and those whom relationship prompts and orders to afford us help; and, thirdly, services are performed by slaves, whose position is such that nothing which they do for their master can give them any claim upon him. . . .

Besides this, he who affirms that a slave does not sometimes confer a benefit upon his master is ignorant of the rights of man; for the question is, not what the station in life of the giver may be, but what his intentions are. The path of virtue is closed to no one, it lies open to all; it admits and invites all, whether they be free- born men, slaves or freed-men, kings or exiles; it requires no qualifications of family or of property, it is satisfied with a mere man. What, indeed, should we have to trust to for defence against sudden misfortunes, what could--a noble mind promise to itself to keep unshaken, if virtue could be lost together with prosperity? If a slave cannot confer a benefit upon his master, then no subject can confer a benefit upon his king, and no soldier upon his general; for so long as the man is subject to supreme authority, the form of authority can make no difference. If main force, or the fear of death and torture, can prevent a slave from gaining any title to his master's gratitude, they will also prevent the subjects of a king, or the soldiers of a general from doing so, for the same things may happen to either of these classes of men, though under different names.

Yet men do bestow benefits upon their kings and their generals; therefore slaves can bestow benefits upon their masters. A slave can be just, brave, magnanimous; he can therefore bestow a benefit, for this is also the part of a virtuous man. So true is it that slaves can bestow benefits upon their masters, that the masters have often owed their lives to them.