唯一真正的发现之旅，唯一永恒的青春之泉，不是去访问陌生的土地，而是拥有其他的眼睛，通过另一个人的眼睛，一百个人的眼睛，来观察宇宙，观察他们每个人所看到的一百个宇宙。

A well-designed space should feel like home the moment you step into it.

Mathematics is not a deductive science—that's a cliché. When you try to prove a theorem, you don't just list the hypotheses and then start to reason. What you do is trial and error, experimentation, guesswork.

世界充满了符号，但我们常常太盲目而看不到它们。