Love your friends with your eyes closed, but love your enemies with both eyes open.

Your father you esteem.
Your mother you pamper.
Your relatives you regard.
Your friends you value.
Your neighbors you respect.
Your enemies you pardon.

Learn from acquaintances, and you are clever;
from friends, and you are intelligent; from enemies, and you are shrewd; but learn from all, and you are wise.

Feed your enemies with a long spoon so they can't bite your hand.

A shrewd enemy will teach you more than a foolish friend.

Wisdom is a great prophet, faith is a great warrior, knowledge is a great sage, and virtue is a great priest.