Hence a wise general makes a point of foraging on the enemy. One
cartload of the enemy’s provisions is equivalent to twenty of one’s
own, and likewise a single picul of his provender is equivalent to
twenty from one’s own store.
Because twenty cartloads will be consumed in the process of
transporting one cartload to the front. According to Ts‘ao Kung, a
鍾 = 6 斛 4 㪷, or 64 㪷, but according to Mêng Shih, 10 斛 make a
鍾. The 石 picul consisted of 70 斤 catties (Tu Mu and others say
120). 𦮼秆, literally, “beanstalks and straw.”