《三国志·魏书·桓二陈徐卫卢传》
适逢司徒的职位空缺，卢毓举荐了有才能但隐居的管宁，明帝没有任用。
会司徒缺，毓举处士管宁，帝不能用。
It happened that there was a vacancy for the post of Grand Tutor, and Lu Yu recommended the talented but reclusive Guan Ning, but Emperor Ming did not appoint him.