Plato,
Laws — Book VI
(1875)
“ And the right treatment of slaves is to behave properly to them, and to do to them, if possible, even more justice than to those who are our equals; for he who naturally and genuinely reverences justice, and hates injustice, is discovered in his dealings with any class of men to whom he can easily be unjust. And he who in regard to the natures and actions of his slaves is undefiled by impiety and injustice, will best sow the seeds of virtue in them; and this may be truly said of every master, and tyrant, and of every other having authority in relation to his inferiors. ”
