Anger that has no limit causes terror, and unseasonable kindness does away with respect. Be not so severe as to cause disgust, nor so lenient as to make people presume.
He who learns, and makes no use of his learning, is a beast of burden with a load of books. Does the ass comprehend whether he carries on his back a library or a bundle of faggots?
Man is, beyond dispute, the most excellent of created beings, and the vilest animal is a dog; but the sages agree that a grateful dog is better than an ungrateful man.
