1920年7月至1924年底,李大钊曾担任北京大学教授,同时在多所学校任客座教授。作为教授,李大钊几近完美地展现了教师的师德与风范。一1920年7月,李大钊正式受聘北大教授(仍兼图书馆主任)。随后他在北大史学系开设了“史学思想史”“、史学要论”等课,在经济系开设了“社会主义与社会运动”课,在法 From July 1920 to the end of 1924, Li Dazhao was a professor at Peking University and was a visiting professor at many schools. As a professor, Li Dazhao displayed the teachers’ ethics and demeanor almost perfectly. In July 1920, Li Dazhao officially employed Peking University professor (still director of the library). Later, he opened his “History of Historical Thoughts”, “History Studies” and other courses at Peking University History Department, and opened the “Socialism and Social Movement” class in the Department of Economics.