《汉书·传·傅常郑甘陈段传》
谷永怜惜段会宗年老又到远方去任官，就去信劝诫他说道： 足下以能安抚远方的美德，重又担负都护的重要职位，甚好甚好！
谷永闵其老复远出，予书戒曰： 足下以柔远之令德，复典都护之重职，甚休甚休！
Gu Yong took pity on Duan Huizong for being old and having to work far away, so he wrote a letter to him and said: "Your Excellency has the virtue of being able to pacify distant lands, and you have once again taken on the important position of Protectorate General. This is very good, very good!