《宋书·列传·卷六十》
干事情要戒绝拖延迟误，又要考虑能够持久。担任学官的人最终没有一点点成绩，白白辜负皇上的希望，自己还有什么情面。
夫事多以淹稽为戒，不远为患，任臣学官，竟无微绩，徒坠天施，无情自处。
Doing things, we must rid ourselves of procrastination and delay, while also considering being able to persevere. Those who have served as officials in the academy but ultimately fail to achieve anything, and in vain disappoint the emperor's hopes, how can they show their gratitude?