A sovereign of high character and intelligence must be able to know the right man, should place the responsibility on him, and expect results.

In warfare, there are no constant conditions. He who can modify his tactics in relation to his opponent will succeed and win.

If you know yourself but not the enemy, for every victory gained you will also suffer a defeat.

Hence the saying: If you know the enemy and you know yourself, your victory will not stand in doubt; if you now Heaven and you know Earth, you may make your victory complete.

Go into emptiness, strike voids, bypass what he defends hit him where he does not expect you.

Attack is the secret of defense; defense is the planning of an attack.

The supreme excellence is not to win a hundred victories in a hundred battles. The supreme excellence is to subdue the armies of your enemies without having to fight them.