Therefore the good fighter will be terrible in his onset, and prompt in his decision.

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.

In war, practice dissimulation and you will succeed.

Victory comes from finding opportunities in problems.

If we wish to fight, the enemy can be forced to an engagement even though he be sheltered behind a high rampart and a deep ditch. All we need do is attack some other place that he will be obliged to relieve.

Carefully study the well-being of your men, and do not overtax them. Concentrate your energy and hoard your strength. Keep your army continually on the move, and devise unfathomable plans.

If not in the interests of the state, do not act. If you cannot succeed, do not use troops. If you are not in danger, do not fight.