Beginning in his freshman year of college, he began to run off to the library to flip through magazines from the Japanese era, including Taiwan Youth and Taiwan, as well as the newspaper Taiwan Minpao. From these, he gained historical and geographical knowledge about that era in Taiwan history. He also encountered Tsai Pei-huo's Mandarin-Taiwanese dictionary.
大一開始，他勤跑圖書館，翻閱日治時期的《台灣青年》、《台灣》等雜誌及《台灣民報》，增加對台灣史地的認識，還找到蔡培火編的《國語閩南語對照字典》作為工具書。