燕京历史系研究生中,有一位来自光华大学的俞大纲先生,为俞大维、俞大级、俞大絪的幼弟,聪颖过人,多才多艺。先研究太平天国,后治唐史,并不特别用功,而识见卓越,在朋辈中颇有威信。研究院未毕业,即入中央研究院历史语言研究所工作。(后放弃历史研究,成为台湾著名戏曲评论家,已逝世,在台湾出版了全集。)他常常称道他的表兄陈寅恪先生研究魏晋隋唐史精深独到,于是引起我的兴趣。1935年秋季开学后,我就到清华 Among the postgraduates of Yanjing History Department, there is a Mr. Yu Dagang from Guanghua University who is a young brother of Yu Dafu, Yu Dafeng and Yu Dafu. He is intelligent and versatile. The first study of the Taiping Heavenly Kingdom, after the rule of the Tang Dynasty, not particularly hard, but to see excellence, quite prestige in the peer. Institute did not graduate, that is, into the Institute of history and language research institute work. (After abandoning historical studies, he became a famous Taiwanese opera critic who had died and published the Complete Works in Taiwan.) Often, his cousin, Mr. Chen Yinque, studied the history of the Wei, Jin, and Sui dynasties and inspired me. After the autumn of 1935, I went to Tsinghua University