If a battle can not be won do not fight it.

Defeat the enemies strategy.

If there is disturbance in the camp, the general's authority is weak. If the banners and flags are shifted about, sedition is afoot. If the officers are angry, it means that the men are weary.

Begin by seizing something which your opponent holds dear; then he will be amenable to your will.

If a general shows confidence in his men but always insists on his orders being obeyed, the gain will be mutual.

Agitate him and ascertain the pattern of his movement.

If your opponent is of choleric temper, seek to irritate him. Pretend to be weak, that he may grow arrogant.