I don’t see myself as a superstar. I see myself as a normal guy who loves tennis.

Old age is not interesting until one gets there.

If you are free, you are not predictable.

解读：靠炫耀、攀比获得的虚荣感，依赖外界认可，根基不稳，一旦外界夸赞消失，内心只剩空虚失落，劝诫远离虚荣，追求真实价值。

I will hazard a prediction. When you are 80 years old， and in a quiet moment of reflection narrating for only yourself the most personal version of your life story， the telling that will be most compact and meaningful will be the series of choices you have made. In the end， we are our choices. Build yourself a great story.

身体一旦垮掉是最遗憾的事情！这健康的体魄，太值得我们呵护了！并且保持健康，才能有足够的精力去实现我们的梦想！