“以序为书”在近代学术史 ,计有两位 :前有梁启超 (一八七三———一九二九 ) ,今有余英时。民国九年 ,梁启超替蒋百里的《欧洲文艺复兴史》作序 ,下笔不能自已 ,文成竟与蒋著相埒 ,遂别刊成册 ;此为《清代学术概论》的由来。该书虽属急就章 ,但规模宏阔 ,影响深邃 ,一时传为 Orderly as the book in modern academic history, there are two: former Liang Qichao (1873 --- 1929), now Yu Ying. In nine years of the Republic of China, Liang Qichao prefaces Jiang Baili’s “European Renaissance History.” He can not write down his own works. Wen Cheng actually made a book with him and published it in another book. This is the origin of the “Introduction to Qing Studies.” Although the book is an urgent chapter, but the scale is ambitious, profound, sometimes passed