数学中最深刻的思想往往源于最简单的观察。
The world is a very complicated place, and it's not always easy to understand what's happening around us.
宇宙是一个相当大的地方。如果只有我们，那似乎是对空间的极大浪费。
It’s not about money. It’s about the people you have, how you’re led, and how much you get it.