《魏书·列传·卷八》
延明博览群书，加上有文才，搜集图书一万多卷，性格清廉节俭，不经营家产。
延明既博极群书，兼有文藻，鸠集图籍万有余卷。性清俭，不营产业。
Yanming read widely and wrote well. He collected more than 10,000 volumes of books. He was upright, frugal, and did not pursue his family's career.