The best man of all is he who ...

The best man of all is he who knows everything himself. Good also the man who accepts another's sound advice; but the man who neither knows himself nor takes to hear what another says, he is no good at all.
 Hesiod

Quotes from the same author

Peace is a nursing mother to the land.
 Hesiod
A day is sometimes our mother, sometimes our stepmother.
 Hesiod
False shame accompanies a man that is poor, shame that either harms a man greatly or profits him; shame is with poverty, but confidence with wealth.
 Hesiod
Happy is the man whom the Muses love: sweet speech flows from his mouth.
 Hesiod
Acquisition means life to miserable mortals.
 Hesiod