Du Mu quotes:

The skilful employer of men will employ the wise man, the brave man, the covetous man, and the stupid man.

Opportunities multiply as they are seized.

Too much emotion is like none at all.

In general, fire is used to throw enemies into confusion so that you can attack them.

If the enemy is the invading party, we can cut his line of communications and occupy the roads by which he will have to return; if we are the invaders, we may direct our attack against the sovereign himself.

If you wish to feign confusion in order to lure the enemy on, you must first have perfect discipline; if you wish to display timidity in order to entrap the enemy, you must have extreme courage; if you wish to parade your weakness in order to make the enemy over-confident, you must have exceeding strength.

Humaneness and justice are the means by which to govern properly. When government is carried out properly, people feel close to the leadership and think little of dying for it.

If I wish to wrest an advantage from the enemy, I must not fix my mind on that alone, but allow for the possibility of the enemy also doing some harm to me... If I wish to extricate myself from a dangerous position, I must consider not only the enemy's ability to injure me, but also my own ability to gain an advantage over the enemy.

Roll rocks down a ten-thousand-foot mountain, and they cannot be stopped - this is because of the mountain, not the rocks. Get people to fight with the courage to win every time, and the strong and the weak unite - this is because of the momentum, not the individuals.