The most important thing in life is to have a clear vision.

"I always work with a goal, and the goal is to improve as a player and a person."

——1998年3月4日接受外界采访

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

Be thankful for what you have; you’ll end up having more. If you concentrate on what you don’t have, you will never, ever have enough.