The general who advances without coveting fame and retreats without fearing disgrace whose only thought is to protect his country and do good service for his sovereign is the jewel of the kingdom.
The skillful employer of men will employ the wise man, the brave man, the covetous man, and the stupid man.
If you know the enemy and know yourself, you need not fear the results of a hundred battles.
If we know that our own men are in a condition to attack, but are unaware that the enemy is not open to attack, we have gone only halfway towards victory.