When you do something best in life, you don’t really want to give that up – and for me it’s tennis.

The best way to predict the future is to create it.

No matter what you’re going through, there’s a light at the end of the tunnel.

科学的目标不是事物本身，而是事物之间的关系。

“唯一真正无限的是人类的灵魂。”