Among those who taught or lectured there were the history scholar Fu Ssu-nien, school president Hu Shih, and Tsui Shu-chin, a historian and educator under whom Liu worked in Taiwan for five or six years. They all influenced the course of Liu's life. After coming to Taiwan from Hong Kong, Liu worked as Tsui's assistant.
當時教他或常對學生演講的代校長史學巨擘傅斯年、校長胡適，以及來台後他追隨了五、六年的恩師、也是史學家兼教育家的崔書琴，在在都影響著他的一生。