A Short History of Chinese Philosophy - 6. The First Phase of Taoism: Yang Chu (Yang Zhu)

Yang Zhu (楊朱; pinyin: Yang Chu; 440-c.360 BC), also known as Yangzi (Master Yang), was a Chinese philosopher during the Warring States period. An early ethical egoist alternative to Mohist and Confucian thought, Yang Zhu's surviving ideas appear primarily in the Chinese texts Huainanzi, Lüshi Chunqiu, Mengzi, and possibly the Liezi and Zhuangzi.[2] He founded the philosophical school of "Yangism".
The philosophies attributed to Yang Zhu, as presented in the Liezi, clash with the primarily Daoist influence of the rest of the work. Of particular note is his recognition of self-preservation (weiwo 為我), which has led him to be credited with "the discovery of the body".[3] In comparison with other Chinese philosophical giants, Yang Zhu has recently faded into relative obscurity, but his influence in his own time was so widespread that Mencius described his philosophies along with the antithetical ideas of Mozi as "floods and wild animals that ravage the land"