[See supra, § 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 favourably 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.
[Chang Yu relates the following anecdote of Kao Tsu, the first Han Emperor: “Wishing to crush the Hsiung-nu, he sent out spies to report on their condition. But the Hsiung-nu, forewarned, carefully concealed all their able-bodied men and well-fed horses, and only allowed infirm soldiers and emaciated cattle to be seen. The result was that spies one and all recommended the Emperor to deliver his attack. Lou Ching alone opposed them, saying: ‘When two countries go to war, they are naturally inclined to make an ostentatious display of their strength. Yet our spies have seen nothing but old age and infirmity. This is surely some ruse on the part of the enemy, and it would be unwise for us to attack.’ The Emperor, however, disregarding this advice, fell into the trap and found himself surrounded at Po-teng.”]
- Thus one who is skilful at keeping the enemy on the move maintains deceitful appearances, according to which the enemy will act.
[Ts’ao Kung’s note is "Make a display of weakness and want." Tu Mu says: "If our force happens to be superior to the enemy’s, weakness may be simulated in order to lure him on; but if inferior, he must be led to believe that we are strong, in order that he may keep off. In fact, all the enemy’s movements should be determined by the signs that we choose to