[Ts`au Kung calls this "the use of natural or inherent
power."]
23. Thus the energy developed by good fighting men is as
the momentum of a round stone rolled down a mountain thousands
of feet in height. So much on the subject of energy.
[The chief lesson of this chapter, in Tu Mu's opinion, is
the paramount importance in war of rapid evolutions and sudden
rushes. "Great results," he adds, "can thus be achieved with
small forces."]