Empty is the house of a childless man; as empty is the mind of a bachelor; empty are all quarters of the world to an ignorant man; but poverty is total emptiness.
Hitopadesa.
411.
The wicked have no stability, for they do not remain in consistency with themselves; they continue friends only for a short time, rejoicing in each other’s wickedness.
Aristotle.
412.
It is the natural disposition of all men to listen with pleasure to abuse and slander of their neighbour, and to hear with impatience those who utter praises of themselves.
Demosthenes.
413.
A man ought not to return evil for evil, as many think, since at no time ought we to do an injury to our neighbour.*