XXXIX. (226) And this is not the only reason why a man's father and mother are deserving of honour, but here are also several other reasons. For among all those nations who have any regard for virtue, the older men are esteemed above the younger, and teachers above their pupils, and benefactors above those who have received kindnesses from them, and rulers above their subjects, and masters above their slaves. (227) Accordingly, parents are placed in the higher and superior class; for they are the elders, and the teachers, and the benefactors, and the rulers, and the masters. And sons and daughters are placed in the inferior class; for they are the younger, and the pupils, and the persons who have received kindnesses, and subjects, and slaves. And that every one of these assertions is correct is plain from the circumstances that take place, and proofs derived from reason will establish the truth of them yet more undeniably.