与人谈话时尽可以积德，与妻子儿女融洽相处也是修身养性的好机会。

You have to be able to center yourself at all times. That's what makes a champion.

计算理论为理解什么可以计算、什么不能计算提供了基础。

如果你想要一幅未来的画面，想象一只靴子踩在人的脸上——永远。

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