《新唐书·列传·卷二十二》
 自从王道美好光明，至今已延续十多年了，仓库粮食越积越多，土地更为广阔，然而德行不能天天增广，仁义不能日渐加深，是何缘故呢？
自王道休明，绵十余载，仓廪愈积，土地益广，然而道德不日博，仁义不日厚，何哉？
Since the right way is good and bright, it has been continuing for ten years so far, storage food is more and more, the land is more vast, but the moral conduct can’t be increased everyday, benevolence and rightness do not increase gradually, what is the reason?