Apersonisborngentleandweak.Attheirdeath,theyarehardandstiff.Greenplantsaretenderandfilledwithsap.Attheirdeath,theyarewitheredanddry.
Therefore,thestiffandunbendingarethedisciplesofdeath.Thegentleandyieldingarethedisciplesoflife.
Thus,anarmywithoutflexibilityneverwinsabattle.Atreethatisunbendingiseasilybroken.