译文：祖国沉沦每个人都有责任，我在天涯漂泊没有家。

The stories are not autobiographical, but they're personal in that way. I seem to know only the things that I've learned. Probably some things through observation, but what I feel I know surely is personal.

数学的本质在于它能够揭示宇宙中隐藏的模式和结构。

唯一存在的限制是你心中的限制。