《旧唐书·列传·卷二十一》
见到什么就扩展什么，欲望不知道满足，人们看不到君主的德政，而只听到要去服劳役的事，这是德中的下等。
触类而长，不思止足，人不见德，而劳役是闻，斯为下矣。
Expand what you see, and your desires never know satisfaction. The people do not see the virtues of the monarch, but only hear that they have to serve labor. This is the lowest in virtue.