Books are as useful to a stupid person as a mirror is useful to a blind person.

Those parents who do not educate their sons are their enemies; for as is a crane among swans, so are ignorant so are ignorant sons in a public assembly.

He who befriends a man whose conduct is vicious, whose vision impure, and who is notoriously crooked, is rapidly ruined.

People's Fury is above all the furies.

Do not keep company with a fool for as we can see he is a two-legged beast. Like an unseen thorn he pierces the heart with his sharp words.

Evil person causes harm even if treated will.

A friend, even if he be the enemy's son , should be protected.