Graham drew our attention to the role of perspective in this passage, noting that Hui Shi’s challenge to Zhuangzi’s assertion does not use the normal question form, (何 héhow do you know?) but a locative question word (安 ānwhence?). This brings the debate into alignment with Zhuangzi’s concern about the various perspectives from which to deploy a dào of word use. Here, as  above, the word is 知 zhīknow. The norm of asserting, as in English, involves answering the challenge “how do you know?” What normative conditions allow me, here and now, correctly to use the term zhīknow—hence to make the assertion about these fish below me? Hui Shi both knew Zhuangzi was relying on a dào of using ‘know’ “from zhuangzi‘s here” and Hui Shi knew Zhuangzi’s situation from his own relevantly similar “here-now” and relying on the same 道 dàonorm of claiming to know from a distinct perspective. Hui Shi cannot consistently insist that a speaker can only use 知 zhīknow when he occupies the perspective of the thing known.