Hence the saying: One may know how to conquer without being able to do it.

For the wise man delights in establishing his merit, the brave man likes to show his courage in action, the covetous man is quick at seizing advantages, and the stupid man has no fear of death.

Against those skilled in attack, an enemy does not know where to defend; against the experts in defense, the enemy does not know where to attack.

In conflict, straightforward actions generally lead to engagement, surprising actions generally lead to victory.

When you surround an army, leave an outlet free. Do not press a desperate foe too hard.

Making no mistakes is what establishes the certainty of victory, for it means conquering an enemy that is already defeated.

Know the enemy, know yourself; your victory will never be endangered. Know the ground, know the weather; your victory will then be total.