《资治通鉴·后唐纪·后唐纪八》
我现在已经年纪大了，还没有能够对时事样样通晓，何况景迁年少担当国家大事，听以委屈您老先生来教导他啊。 
吾今老矣，犹未遍达时事，况景迁年少当国，故屈吾子以诲之耳。 
I am old and not keeping up with the current affairs. How could you ask me to teach Jingqian, who is taking the responsibility of the country? This is like asking you to suffer instead of him. 