《后汉书·列传·郑范陈贾张列传》
当时有人倡议想立《左氏传》博士，范升上奏认为《左氏》浅末，不该立。
时议欲立《左氏传》博士，范升奏以为《左氏》浅末，不宜立。
At that time, some people proposed to establish a doctorate in "Zuo's Commentary", and Fan Sheng memorials argued that "Zuo's Commentary" is shallow and should not be established.