Zhou Dunyi (1017-1073), born Zhou Dunshi, courtesy name Maoshu, was a Chinese Neo-Confucian philosopher and cosmologist born in present-day Dao County, Yongzhou, Hunan Province during the Song Dynasty. He conceptualized the Neo-Confucian cosmology of the day, explaining the relationship between human conduct and universal forces. In this way, he emphasized that humans can master their qi ("psycho-physical stuff; vital life energy") in order to accord with nature.
Taiji Tushuo ("Explanations of the Diagram of the Supreme Ultimate" or "Diagram Explaining the Supreme Ultimate")
Tong Shu ("Penetrating Books of Changes")