网球是一项残酷的运动。没有平局。如果你输了，你就出局了。
Tennis is a brutal sport. There are no draws. If you lose, you’re out.
I wanted to write a book about memory because I think it's one of the most fascinating things about being human.
The future is not a gift. It is an achievement.
最好的科学往往来自意想不到的地方。
The harder the conflict, the more glorious the triumph.