《资治通鉴·唐纪·唐纪十三》
如今太子入侍宫闱，动辄超过十天半个月，太师太保以下官员，很少与太子应对答问，希望能稍微抑制一下对子孙的爱心，弘扬传之久远的规制，则是天下百姓的幸事。 
今入侍宫闱，动逾旬朔，师保以下，接对甚希，伏愿少抑下流之爱，弘远大之规，则海内幸甚！ 
Now that the crown prince has entered the palace to attend to the emperor, he often stays for more than ten days or half a month. It is rare for ministers below the grand preceptor and grand guardian to converse with the crown prince. If his love for his descendants could be slightly restrained, and the long-established rules be promoted, then this would be fortunate for all under heaven.