上个世纪二三十年代,清华大学设立了国学研究院。冯友兰在《三松堂自序》中回忆道:“国学研究院的教授称为导师,当时只有四位导师:梁启超、王国维、陈寅恪、赵元任。”四位导师学问既大,其读书方法可借鉴之处亦多。梁启超:读课外书为必修课梁启超说:“学生做课外学问是最必要的,若只求讲堂上功课及格,便算完事,那么,你 Twenties and thirties of last century, Tsinghua University set up the Institute of Chinese Studies. Feng Youlan recalled in Sanshuntang’s Preface: ”The professors of the Guoxue Institute were called mentors, and there were only four supervisors at the time: Liang Qichao, Wang Guowei, Chen Yinke, and Zhao Yuanren.“ There are many lessons for reference. Liang Qichao: Extra-curricular reading is a compulsory course. Liang Qichao said: ”Students are required to do extra-curricular learning. If you only want to pass the exams in the lecture hall,