Fierce language and pretentious advances are signs that the enemy is about to retreat.
A warrior who is prepared to fight must also be prepared to die.
Being unconquerable lies with yourself; being conquerable lies with your enemy.
Hence the experienced soldier, once in motion, is never bewildered; once he has broken camp, he is never at a loss.
Quickness is the essence of the war.
And therefore only the enlightened sovereign and the worthy general who are able to use the most intelligent people as agents are certain to achieve great things.