The skillful tactician may be likened to the shuai-jan. Now the shuai-jan is a snake that is found in the Ch'ang mountains. Strike at its head, and you will be attacked by its tail; strike at its tail, and you will be attacked by its head; strike at its middle, and you will be attacked by head and tail both.
Sun TzuTo conquer the enemy without resorting to war is the most desirable. The highest form of generalship is to conquer the enemy by strategy.
Sun TzuWhen you are ignorant of the enemy but know yourself, your chances of winning or losing are equal.
Sun TzuIf, however, you are indulgent, but unable to make your authority felt; kind-hearted, but unable to enforce your commands; and incapable, moreover, of quelling disorder: then your soldiers must be likened to spoilt children; they are useless for any practical purpose.
Sun Tzu