I fear God and next to God I mostly fear them that fear him not.
O wise man, wash your hands of that friend who associates with your enemies.
No reliance can be placed on the friendship of kings, nor vain hope put in the melodious voice of boys; for that passes away like a vision, and this vanishes like a dream.
Whenever thy hand can reach it, tear out the foe's brain, for such an opportunity washes anger from the mind.
An enemy to whom you show kindness becomes your friend.
It is wrong to follow the advice of an adversary; nevertheless it is right to hear it, that you may do the contrary; and this is the essence of good policy.