我从不担心行动。而只担心没有任何行动。

The best way to find out if you can trust somebody is to trust them.

The best traders are those who can think independently.

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

I don't think about the past. The only thing that matters is the future.

每一个发现都建立在前人的工作之上。