I can never be safe; I always try and go against the grain. As soon as I accomplish one thing, I just set a higher goal. That's how I've gotten to where I am.

生活是由选择构成的，而每一个选择都是一种放弃。

对称性不仅是自然的一种属性，而且是寻找物理定律的指导原则。

我不相信贫穷，我相信努力工作。