The great secret that all old people share is that you really haven't changed in seventy or eighty years. Your body changes, but you don't change at all.
When you do something best in life, you don’t really want to give that up – and for me it’s tennis.
The public doesn't know what it wants until you give it to them.
创新不仅仅是技术,更是改变人们的生活。
Poetry is the language of the soul.