 The third group are based on spatial relations, including comparisons of size. Thesis 3, the only one also attributed to Hui Shi in the Xunzi, can be taken to illustrate the idea that things deemed different on one scale can be deemed the same on another. By some perspective or standard, such as that of the infinitely vast Great One, the difference between the height of the sky and the earth or mountains and marshes may be insignificant. From that perspective, the differences between mountains and marshes may be only what thesis 5 calls “differences on a small scale,” while the two count as “the same” on a large scale. Thesis 6 is especially obscure. Thematically, we can point out that like several of the other theses, it attempts to collapse a distinction, in this case between the finite and infinite. As Hansen (1992: 262) points out, thesis 6, along with 7 and 9, all focus on indexicals. Since the referents of indexicals shift from context to context, they are a vivid example of the fluidity of the language-world relation and the distinction between “this” (shi) and “not” (fei). This suggests at least two ways to understand the thesis, both too speculative to be considered justified, but perhaps at least roughly indicative of its point. One is that if a particular direction is to be south, it must have a limit, or else the four directions all merge into one and south is no longer south, since it is not distinguished from the other three. Another possibility is that since the directions of the compass are all indexical, relative to our point of reference, south always has a limit: the point at which we stand. 