Yang Chu was a philosopher of the classic age of Chinese thought who probably lived in the 300's B.C.E. He has been associated with the Taoists since the rise of official Confucianism and the consolidation of what we now call 'Taoism', although this term is problematic, as thinkers like Yang Chu, Chuang Tzu, and Lao Tzu are quite different and were not considered to be members of a single school in ancient times. In addition, the text that we still have which is attributed to Yang Chu is from a somewhat later period, preserved in the Lieh Tzu (other extracts of which are also available at sacred-texts in the book Taoist Teachings), which did not reach its final form until perhaps 400 C.E. or so. In this text, Yang Chu is far from being a mystic, and is concerned mainly with enjoying life to its fullest, allowing a person's individual character the fullest expression possible and not interfering with natural processes.