Do calligraphers have anything called four words, Fan Zhongshi?

You may be talking about Ouyang Zhongshi.

Ouyang Zhongshi, a famous scholar, calligrapher and calligraphy educator, 1928, was born in Feicheng, Shandong. In his early years, he worshipped Peking Opera master Xi Xiaobo as a teacher. At present, he is a professor at Capital Normal University, a postdoctoral tutor for doctoral students, the director of China Calligraphy Culture Institute, a member of the Chinese People's Political Consultative Conference, a consultant of China Calligraphers Association and a director of Chinese Painting Research Institute. Facing Ouyang Zhongshi is like facing a thick book, which makes you awe and memorable.

Attach a copy of his work to see if it is the person you are looking for.