Those who are victorious plan effectively and change decisively. They are like a great river that maintains its course but adjusts its flow.

If ignorant both of your enemy and yourself, you are certain to be in peril.

Rewards for good service should not be deferred a single day.

Should one ask: 'how do I cope with a well-ordered enemy host about to attack me?' I reply: seize something he cherishes and he will conform to your desires.

The clever combatant imposes his will on the enemy, but does not allow the enemy's will to be imposed on him.

If, however, you are indulgent, but unable to make your authority felt; kind-hearted, but unable to enforce your commands; and incapable, moreover, of quelling disorder: then your soldiers must be likened to spoilt children; they are useless for any practical purpose.

Someone unfamiliar with the mountains and forests cannot advance [the team]. One who does not employ local guides cannot gain the advantage.