《三国志·魏书·和常杨杜赵裴传》
现在谋臣们一定认为我在礼法上过于严苛，对待事情却很宽和；胡人向来傲慢任性，对他们太宽和就会导致松弛散漫，他们松弛散漫后又用律法震慑他们，这就是诉讼纷争所以产生的原因。
今计者必以潜为理过严，而事加宽惠；彼素骄恣，过宽必弛，既弛又将摄之以法，此讼争所由生也。
Now the counselors must think that I am too harsh on the etiquette and law, but very lenient on things; Hu people have always been arrogant and willful, and being too lenient towards them will lead to laxity and laxity, and after they become lax and lax, they will use the law to deter them. This is the reason why lawsuits and disputes arise.