你给予的越多，得到的就越多。

天性常被隐藏，有时被克服，但很少被消灭。

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

I always try to stay humble and respect my opponents.

释义：拥有财富和地位本身并不值得荣耀，只有将财富和地位用于造福社会，才是真正的荣耀。

Quality is not a position; it is a practice.