This essay, entitled “Experimenting with Chinese Language and Classics: Zeami’s Treatise Goi,” examines Goi 五位 (Five Levels), the only surviving treatise written in (pseudo-)classical Chinese by Zeami, the single most important theorist of nō theatre. It explores the meaning and location of the treatise within the contexts of Zeami’s theoretical works and the possible Chinese influences surrounding the dramatist. It argues that Goi demonstrates Zeami’s references to Chinese classics and composition in the Chinese language were a pedagogical vehicle employed to convey his artistry and philosophy of nō performance.