It's sort of sad when you think of a kid like that going through life without a sense of humor...

"Tennis has given me everything, and I want to give something back."

学习速度是当今世界唯一可持续的竞争优势。

The world is full of people who have dreams and the world is full of people who have ideas, but the world is also full of people who never do anything about them.

我不怕失败，最怕的是没勇气去试。

The voice is an instrument that is inside you. It’s the only instrument that you can’t see.

Never underestimate the power of a small team with a big vision.