history
From Bi Yuan's 《续资治通鉴·元纪》 (Qing dynasty): 得如左丞许衡教国子，则人才辈出矣, with a teacher like Xu Heng, talented people would emerge wave after wave.
usage
Strongly positive. Commonly used to praise institutions (schools, teams, regions) for consistently producing talent over time, not a one-off success.
