translation.en: But, more interestingly, it happened to apply to physics, something we knew nothing about -- at least I knew nothing about physics, and I don't think Chern knew a heck of a lot.
translation.zh: 但更有趣的是 它正巧可以应用于物理 一个我们完全不了解的东西 至少我是完全不了解的 我觉得陈也不会了解太多