I’ve had people look down on me and put me down because I didn’t look like them—but that didn’t stop me.

我坚信这个理论：你付出多少就会得到多少。

The challenge of modern physics is not just to understand the universe, but to understand our place within it.

变化的速度永远不会比今天更慢。

生活要么是一次大胆的冒险，要么什么都不是。