Taijitu Taijitu A taijitu () is a symbol or diagram ( "tú") in Chinese philosophy representing Taiji ( "tàijí" "great pole" or "supreme ultimate") representing both its monist ("wuji") and its dualist (yin and yang) aspects. Such a diagram was first introduced by Song Dynasty philosopher Zhou Dunyi (周敦頤 1017–1073) in his "Taijitu shuo" 太極圖說. The modern Taoist canon, compiled during the Ming era, has at least half a dozen variants of such "taijitu". The two most similar are the "Taiji Primal Heaven" (太極先天圖 "tàijí xiāntiān tú") and the "wuji" (無極圖 "wújí tú") diagrams, both of which have been extensively studied
Taijitu has its nature. Instead of usual "Taiji" translations "Supreme Ultimate" or "Supreme Pole", Adler uses "Supreme Polarity" (see Robinet 1990) because Zhu Xi describes it as the alternating principle of "yin" and "yang", and ... insists that "taiji" is not a thing (hence "Supreme Pole" will not do). Thus, for both Zhou and Zhu, "taiji" is the "yin-yang" principle of bipolarity, which is the most fundamental ordering principle, the cosmic "first principle." "Wuji" as "non-polar" follows from this. Since the 12th century, there has been a vigorous discussion in Chinese philosophy regarding the ultimate origin of Zhou Dunyi's diagram. Zhu