Lái Zhīdé (來知德 / 来知德; also Lái Qútáng 來瞿唐 / 来瞿唐, 1525–1604)^[1] was a Ming period Neo-Confucian philosopher. He introduced into Chinese philosophy the well-known "Yin and Yang symbol", the taijitu (a "diagram of the great ultimate"). Lai Zhide is the author of an I Ching commentary, the Explanation of the Classic of Change Annotated by Mr Lai (ed. Zheng Can 1988).

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• Li Zhi (Ming Dynasty)
• Zhou Dun-yi, an 11th-century Neo-Confucian who had also presented a taijitu