"The general who is skilled in defense hides in the most secret recesses of the earth; he who is skilled in attack flashes forth from the topmost heights of heaven."

"The greatest general is one who can achieve victory without ever having to draw his sword."

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

"Do not repeat the tactics which have gained you one victory, but let your methods be regulated by the infinite variety of circumstances."

"The art of war is like a game of chess, but with real lives."