我读书甚为驳杂,漫羡而无所归心;新书读得比较少,“新潮”书几乎没有认真读过。下列十种“旧”书可以说是对我的晚年思想和治学最有影响的;有一些成了我的“案头书”。这里我用了“种”,而没有用“册”,是因为每一“种”可能牵涉不止一“册”。先说中国书五种: I read books very misleadingly. I was full of guilt and had no intentions. The new books were less read. The “new wave” book was hardly read. The following ten “old” books can be said to have the most impact on my old age ideas and scholarship; some have become my “head book.” Here I use “species” instead of “books” because each “species” may involve more than one “book.” Let us first talk about five kinds of Chinese books: