《资治通鉴·魏纪·魏纪三》
转运军用物资的劳累，肩挑背负的辛苦，耗费的已经很多，如果供应不能跟上，一定事与愿违。
转运之劳，担负之苦，所费已多，若有不断，必违本图。
The labor of transporting military supplies and the hardships of carrying them on one's shoulders or back have already cost a lot. If the supply can not keep up, it must go against one's wishes.