This text argues that “this, not that” judgments are only made by humans about nature and never by nature itself, a position that has been described as this text’s indexical relativism. This text distinguishes between the pipes of earth, man, and heaven in a metaphor that explains how humans argue but nature is united. In this text, Hui Shi (15[1])argues that while he cannot know the pleasures of a fish, he can know that others do not know it. This text presents its idea of (*) “action through inaction” (-5[1])using the story (-5[1])of a butcher who has not changed his knife in 19 years but cuts meat effortlessly. The title figure in this text dreams that they were a butterfly, before awakening and questioning whether they were a butterfly dreaming that they were human. For 10 points, name this text, which along with the earlier Dàodéjīng, serves as a foundational Daoist work. ■END■ (10[2])