Wang Bi
With the fall of the Han, "I Ching" scholarship was no longer organized into systematic schools. The most influential writer of this period was Wang Bi, who discarded the numerology of Han commentators and integrated the philosophy of the Ten Wings directly into the central text of the "I Ching", creating such a persuasive narrative that Han commentators were no longer considered significant. A century later Han Kangbo added commentaries on the Ten Wings to Wang Bi's book, creating a text called the "Zhouyi zhu". The principal rival interpretation was a practical text on divination by the soothsayer Guan Lu.