Wang Chong

Wang Chong (Chinese: 王充; pinyin: Wáng Chōng; Wade–Giles: Wang Ch'ung; 27 – c. 97 AD), courtesy name Zhongren (仲任), was a Chinese astronomer, meteorologist, naturalist, philosopher, and writer active during the Eastern Han dynasty. He developed a rational, secular, naturalistic and mechanistic account of the world and of human beings and gave a materialistic explanation of the origin of the universe. His main work was the Lunheng (論衡, "Critical Essays"). This book contained many theories involving early sciences of astronomy and meteorology, and Wang Chong was even the first in Chinese history to mention the use of the square-pallet chain pump, which became common in irrigation and public works in China thereafter. Wang also accurately described the process of the water cycle.

Unlike most of the Chinese philosophers of his period, Wang spent much of his life in non-self-inflicted poverty. He was said to have studied by standing at bookstalls, and had a superb memory, which allowed him to become very well-versed in the Chinese classics. He eventually reached the rank of District Secretary, a post he soon lost as a result of his combative and anti-authoritarian nature.