《资治通鉴·唐纪·唐纪五十一》
阳城还没有来到京城，人们便思慕他的风度文采，都说： 阳城肯定会直言规谏，效忠职守，以至于死的。 
未至京师，人皆想望风采，曰： 城必谏诤，死职下。 
Before Yang Cheng had even made it to the capital, people were struck by his grace and literary talent, and they all said: Yang Cheng will certainly remonstrate and be faithful to his duty, even unto death.