《资治通鉴·汉纪·汉纪四十七》
处理政事的关键在于，要记住臣下的功劳，忘掉他们的过失。所以，汉武帝从囚徒中选拔韩安国，宣帝从逃亡犯中征召张敞。
夫立政之要，记功忘失；是以武帝舍安国于徒中，宣帝征张敞于亡命。
The key to handling governmental affairs is to remember the worthy deeds of your subordinates and forget their offenses. Therefore, Emperor Wu of Han selected Han Anguo from among the detainees and Emperor Xuan drafted Zhang Chang from among the fugitives.