Gu Zhun (; 1915–1974) was a Chinese intellectual, economist and pioneer of post-Marxist Chinese liberalism. A victim of "anti-Rightist" purges, he spent his later life in prisons and reeducation centres. The recovery and publication of Gu's prison diaries and theoretical writings caused a sensation in intellectual circles when published in the mid 1990s. Having spent his life as a highly trained economist with Marxist convictions and heroic career as a revolutionary, his fall from grace and savage punishment led him to develop an authentic and deeply personal conversion to the values of liberal democracy. Cut off from the mainstream of 20th century Western thought, he in a sense "reinvented the wheel" of liberal theory. While certain critics have disparaged his ideas as "laughable if translated into English," from a Chinese liberal perspective he represents a rare case of authentic invention of liberalism, relatively free of suspect foreign influences. Gu was an accountancy expert in his youth, joining the underground Communist Party in Shanghai in the late 1930s, and later appointed to leading roles in the post-Liberation Shanghai tax administration. However, having given outspoken and unwelcome advice to senior cadres, he was in 1952 charged with counter-revolutionary tendencies, demoted and sentenced to "remoulding." In each of the succeeding cycles of Leftist-inspired purges Gu's "Rightist" label was reimposed and his punishments renewed. Rehabilitated in a brief period of political relaxation in the early 1960s, he was rescued from his pariah status by the economist Sun Yefang, with whom he had been associated in the Shanghai underground movement. Sun arranged a research position for Gu in the Institute of Economics of the Philosophy and Social Science Section (Xuebu, 学部) of the Chinese Academy of Science (CAS). The Xuebu was to form the core of the Chinese Academy of Social Science (CASS) when it was split off from CAS in 1977. Many senior figures in CASS, such as the economist Wu Jinglian, were formatively influenced by Gu Zhun during this period. The Cultural Revolution once again submerged people with Rightist backgrounds. Gu was again subjected to harsh punitive treatment, losing contact with his wife and children. His main contact with the outside world was with his brother Chen Minzhi () (1920–?). Contemporary intellectual historians like Zhu Xueqin have hailed Gu Zhun's oeuvre as a major resource for contemporary Chinese liberalism. Li Shenzhi, a Vice-President of CASS and noted liberal activist, wrote of Gu Zhun