"A Madman's Diary" (simplified Chinese: 狂人日记; traditional Chinese: 狂人日記; pinyin: Kuángrén Rìjì; Wade–Giles: K'uang-jen Jih-chi) was written in 1918 by Lu Xun, commonly considered one of the greatest writers in 20th-century Chinese literature. This short story is considered to be one of the first and most influential modern works written in vernacular Chinese. "A Madman's Diary" is an attempt by Lu Xun to describe the effects of feudal values upon the Chinese people. He uses an analogy of cannibalism to describe the way such outdated values eat away at the individual. The story would become a cornerstone of the New Culture Movement.
Lu Xun (鲁迅) or Lu Hsün (Wade-Giles), was the pen name of Zhou Shuren (September 25, 1881 – October 19, 1936), a leading figure of modern Chinese literature. Writing in Vernacular Chinese as well as Classical Chinese, Lu Xun was a novelist, editor, translator, literary critic, essayist, and poet. In the 1930s he became the titular head of the League of Left-Wing Writers in Shanghai.
For the Traditional Chinese profile: here. For the Simplified Chinese profile: 鲁迅