Hu Hung also called Wu-feng (1100–55), Chinese Neo-Confucian philosopher and an important figure in the Hunan School. According to him, hsin (mind/heart) is the outward manifestation of hsing (human nature); one must first understand the nature of jen (humanity) before one can practice moral cultivation. Professor Mou Tsung-san believed that Hu Hung succeeded Chou Tun-yi, Chang Tsai, and Ch’eng Hao, representing a third line of thought other than those of Ch’eng–Chu and Lu–Wang. See also CHANG TSAI, CH’ENG HAO, CHOU TUN-YI, CHU HSI , NEO -CONFUCIANIS. S.-h.L.