"If you know the enemy and know yourself, you need not fear the result of a hundred battles. If you know yourself but not the enemy, for every victory gained you will also suffer a defeat. If you know …"

"The skillful tactician may be likened to the shuai-jan. Now the shuai-jan is a snake that is found in the Ch'ang Shan mountains. Strike at its head, and you will be attacked by its tail; strike at its…"

"To fight and conquer in all your battles is not supreme excellence; supreme excellence consists in breaking the enemy's resistance without fighting."

"He who is skilled in attack flashes forth from the topmost heights of heaven."

"Know the ground, know the weather; your victory will then be complete."