宇宙不仅比我们想象的更奇怪，而且比我们能想象的还要奇怪。

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

The problem is when that fun stuff becomes the habit. And I think that's what's happened in our culture. Fast food has become the everyday meal.

成功不是终点，失败也不是末日。

A book should feel like an adventure, even if it’s just about a day at home.