A scholar working around 600 years later after the fall of the Han, Guo Xiang (d. 312), edited and reduced what he saw as a haphazardly accumulated cluster of apocryphal and possibly authentic texts. He concluded that many were added after the time Zhuangzi lived. Guo reports compressing that prior collection of writings from fifty-two chapters to thirty-three. This is the extant text on which our knowledge is based. Guo divided the chapters he had chosen into three sections: the “Inner Chapters” (1–7), the “Outer Chapters” (8–22) and the “Miscellaneous Chapters” (23–33). He attributed only the first section to the period dating from Zhuangzi’s lifetime—hence possibly originating from Zhuangzi himself. The second grouping may have included writings of a “School of Zhuangzi.” Modern scholarship assigns various sources of other influences found in both the second “outer” and final “miscellaneous” chapters. Graham drawing on work of the Chinese theorist, Kuan Feng and followed with some variation by Liu Xiaogan and Harold Roth, divides these influences into roughly four variously named groups: 