方汉奇先生曾于20世纪50年代(1953-1958)和70年代(1972-1978)两度执教北大。他本人虽曾桑榆忆往,写过视北大为“学术故乡”的文章①,但却并没有详及自己当时的学术研究。本文的意图不仅在于阐幽发微方汉奇执教北大期间的学术研究情况,而且也期待能够从前辈学者过去的学术经历中——探寻出对今天的学人仍具启发意义的精神之火。 Mr. Fang Hanqi twice coached Peking University in the 1950s (1953-1958) and 1970s (1972-1978). Although he himself once Sang Yu recalls writing Peking University for the “academic hometown” article ①, but did not give a detailed account of his academic research at the time. The intent of this article is not only to shed light on academic research during coaching Habitat Peking, but also to look forward to the spiritual fire that inspired scholars today, from past academic experiences of their predecessors.