《贞观政要·卷十·论畋猎》
秘书监虞世南因为唐太宗喜欢打猎，就上疏说： 我听说秋冬两季打猎，是历来的传统，射杀猛兽，追遂飞禽，前人已有训诫。
秘书监虞世南以太宗颇好畋猎，上疏谏曰： 臣闻秋狝冬狩，盖惟恒典；射隼从禽，备乎前诰。
The Minister for the Secretariat, Yu shin-nan, because Emperor Taizong enjoyed hunting, memorialized him, saying: I have heard that hunting in the autumn and winter was a tradition of the past, shooting ferocious beasts, chasing flying birds, to which sages of the past have admonished us.