Students, an important moment in history is coming. Whose speech is this?

According to the classic lines in The Beginning of the Great Rejuvenation, students, an important moment in history is coming. Who is Chen Duxiu's line in the movie? Lines are Chinese words, meaning the spoken language of the characters in the play.

Chen Duxiu (1879 19421October 9-1May 27, 942), formerly known as Chen Qingtong and Chen Gansheng, from Huaining, Anhui Province, was an advocate, initiator and main standard bearer of the New Culture Movement, and was the "Commander-in-Chief of the May 4th Movement".