A man who works evil against another works it really against himself, and bad advice is worst for the one who devised it
HesiodIn front of excellence, the immortal gods have put sweat, and long and steep is the way to 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.
Hesiod