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Wú Chéng or Wu Ch'eng (1249 – 1333) (traditional Chinese: 吳澄; simplified Chinese: 吴澄), courtesy names Yòuqīng (Chinese: 幼清) and Bóqīng (Chinese: 伯清), studio names Yīwúshānrén (Chinese: 一吾山人) and Caolu Xiansheng (草廬先生; lit. "Mr. Grass Hut"), was a scholar, educator, and poet who lived in the late Song and Yuan Dynasty.
Wu Cheng was born in 1249 in Fuzhou, Jiangxi 撫州江西, into a poor family with a scholarly heritage. His early training was in the Zhu Xi 朱熹 (1130-1200) lineage, but he was also exposed to the idea of harmonizing the Zhu Xi teachings with those of Lu Xiangshan 陸象山 (Lu Jiuyuan 陸九淵; 1139-1193). This synthetic tendency was apparent in Wu’s later writings and exerted an influence on the development of xinxue 心學 (the School of the Mind and Heart) in the Ming 明 era (1368-1644). He died in 1333.
Failing to pass the jinshi 進士 examination just prior to the invasion of Jiangxi by the Mongols, Wu supported the resistance forces of Wen Tianxiang 文天祥 (1236-1283). After the takeover, educators in the capital tried unsuccessfully to recruit him to serve the Yuan and instead disseminated his classical commentaries. He refused local appointments, but in 1309 he served in the Directorate of Education in Dadu 大都 (Beijing 北京), leaving in 1312 over differences with those reinstituting the examination system, which had been defunct since the Mongol takeover. Wu had wished to broaden the classical curriculum beyond Zhu Xi’s commentaries on the Four Books 四書 and proposed models that challenged the prevailing plan. In the 1320s he also served in the Historical Bureau in the capital.
Among Wu Cheng's contributions there is a famous condemnation of the divination practice as described in the "Great Plan," the Hong Fan(洪範), section of the Book of Documents (尚書 Shang Shu), a classic for which he provided an alternative organization to the orthodox arrangement. According to him, the enlightened Ji Zi, responsible for transmission of the teaching about the divination prevailing over opinions of nobles and ordinary people, was under the sway of Shang dynasty superstitions. The matter is discussed in Karlgren's commentaries on the "Great Plan" (Nylan, 1992:169).
Wu wrote original and critical commentaries on almost all of the classics, and the Dao de jing 道德經, but his greatest achievements were philosophical, in discussing the limits on human understanding of ideas like taiji 太極 (the Great Ultimate), and in emphasizing the need to crystallize moral truths within oneself (ningdao 凝道). His attempt to synthesize the ideas of Zhu Xi and Lu Xiangshan led him into adopting Lu’s ideas on interiority, thus anticipating the development of the School of Mind in the Ming and Qing 清 (1644-1912) eras. As a successful and popular teacher, Wu had many students over his long life, and it was as a mentor and inspiration to them that he made his greatest impact as a scholar in the Yuan era.
- Gedalecia, David. The Philosophy of Wu Ch’eng: A Neo-Confucian of the Yüan Dynasty. Bloomington: Indiana University, 1999.
- Gedalecia, David. A Solitary Crane in a Spring Grove: The Confucian Scholar Wu Ch’eng in Mongol China. Wiesbaden: Harrassowitz Verlag, 2000.
- Gedalecia, David. "Wu Ch'eng and the Perpetuation of the Classical Heritage in the Yüan," in Langlois, J.D. ed., China Under Mongol Rule. Princeton, N.J.: Princeton University Press, 1981.
- Gedalecia, David. "Wu Ch'eng's Approach to Internal Self-Cultivation and External Knowledge-Seeking," in Chan, Hok-lam and de Bary, W.T., eds. Yüan Thought: Essays on Chinese Thought and Religion Under the Mongols. New York: Columbia University Press, 1982.
- Nylan, Michael. The Shifting Center: The Original "Great Plan" and Later Readings. Sankt Augustin: Monumenta Serica, 1992.