The man who does evil to another does evil to himself, and the evil counsel is most evil for him who counsels it.
HesiodThat man is best who sees the truth himself. Good too is he who listens to wise counsel. But who is neither wise himself nor willing to ponder wisdom is not worth a straw.
HesiodFar best is he who is himself all-wise, and he, too, good who listens to wise words; But whoso is not wise or lays to hear another's wisdom is a useless man.
Hesiod