《新五代史·列传·周家人传第八》
我读周的历史，读到柴守礼杀人，周世宗放过而不追究，这是因为已经挺身而出，承担天下重任，但儿子对于父亲的义务也很重大，因此宁愿承担违背法律的过失，来伸张父子之道，它之所以符合道义，大概就在于懂得权宜变通的道理。
予读周史，见守礼杀人，世宗寝而不问，盖进任天下重矣，而子于其父亦至矣，故宁受屈法之过，以申父子之道，其所以合于义者，盖知权也。
I was reading the history of the Zhou, and I read that when Chai Shou Li murdered someone, Zhou Shizong spared his life and did not pursue the matter. This was because he had stepped forward and taken on the heavy duty of the world, but the duty of the son to the father is also great, so he would rather bear the fault of violating the law than not extend the Way of Father and Son. The reason why this conforms to righteousness is perhaps because he understood the reasoning of expediency and adaptability.