Know thy self, know thy enemy. A thousand battles, a thousand victories. - Sun Tzu

If you wish to feign confusion in order to lure the enemy on, you must first have perfect discipline; if you wish to display timidity in order to entrap the enemy, you must have extreme courage; if you wish to parade your weakness in order to make the enemy over-confident, you must have exceeding strength.”] 18. Hiding order beneath the cloak of disorder is simply a question of subdivision; [See supra, ss. 1.] concealing courage under a show of timidity presupposes a fund of latent energy; [The commentators strongly understand a certain Chinese word here differently than anywhere else in this chapter. Thus Tu Mu says: “seeing that we are favorably circumstanced and yet make no move, the enemy will believe that we are really afraid.”] masking strength with weakness is to be effected by tactical dispositions.

[T]o fight and conquer in all your battles is not supreme excellence; supreme excellence consists in breaking the enemy's resistance without fighting.

The Book of Army Management says: On the field of battle, the spoken word does not carry far enough: hence the institution of gongs and drums. Nor can ordinary objects be seen clearly enough: hence the institution of banners and flags.