我永远不会安逸,我总是尝试逆流而上。每完成一个目标,我就会设定更高的目标。这就是我走到今天的方式。
I can never be safe; I always try and go against the grain. As soon as I accomplish one thing, I just set a higher goal. That's how I've gotten to where I am.
The day I stop believing I can win is the day I'll stop playing tennis.