《新唐书·列传·卷三十七》
柳亨骑射打猎没个限度，太宗说道： 你和我既是朋友又是亲戚，但你交朋结友太多了，从今以后应当稍微克制。 
亨射猎无检，帝谓曰： 卿于朕旧且亲，然多交游，自今宜少戒。 
Liu Heng indulged himself to the utmost in hunting and archery. Emperor Taizong said, "Both you and I are relatives and friends, but you have too many friends. You should correct this a little from now on."