1917年1月4日,一辆四轮马车驶进北京大学的校门,徐徐穿过校园内的马路。这时,早有两排工友恭恭敬敬地站在两侧,向蔡元培,这位刚刚被任命为北大校长的传奇人物鞠躬致敬。新校长缓缓地走下马车,摘下他的礼帽,向这些杂工们鞠躬回礼。在场的许多人都惊呆了:这在北大是前所未有过的 On January 4, 1917, a four-wheeled carriage entered the gate of Peking University and slowly passed through the road on campus. At this time, there were already two rows of workers who stood respectfully on both sides and paid tribute to Cai Yuanpei, the legendary figure who had just been named president of Peking University. The new principal slowly walked off the carriage and took off his hat to return to the workers. Many people present were stunned: This is unprecedented at Peking University.