从《癸亥级刊》说起三年前的一天,我在中国科学院文献情报中心开架的人文社科图书中随意翻阅,偶然地发现了一本早期清华的学生刊物《癸亥级刊》,封面题“民国八年六月清华癸亥级编”。按照当时清华学校的学制,学生必须连续修满中等科四年、高等科四年课程方可卒业。癸亥级学生于民国四年即1915年9月入中等科,而“以毕业高四 Speaking three years ago from “Gui Hai Journals”, I read through the books in the humanities and social sciences opened by the Documentation and Information Center of the Chinese Academy of Sciences and accidentally discovered an early Tsinghua student publication Gui Yi, Cover title “In June eight years Qinghua Gui Hai series.” In accordance with the current Tsinghua School system, students must continuously complete four years of secondary subjects and four years of higher education courses before graduation. Guihai students in the Republic of China four years that September 1915 into the middle section, and "to graduate high school