《资治通鉴·唐纪·唐纪一》
那老夫虽然年迈，仍愿意尽力相助；假如是象王莽、董卓，乘国家危难谋利，那老夫是没什么用的！ 
则老夫虽迟暮，犹愿尽力；若为莽、卓，乘危邀利，则无所用老夫矣！ 
"If so, though I am old, I will still do my utmost to help; if it is like Wang Mang and Dong Zhuo, taking advantage of the nation's difficulties to seek power, then I am of no use!"