《资治通鉴·魏纪·魏纪五》
谚语说： 救寒草如厚皮袄，止谤莫如自修身。 
谚曰： 救寒莫如重裘，止谤莫如自修。 
The proverb said: To rescue people in need of cold is like giving them a thick cotton-padded coat, and to stop slander is better than to self-cultivate.