You are stronger than you think, braver than you believe, and smarter than you know.

最重要的比赛是在球场上获胜之前先在脑海中获胜。

The most dangerous weapon is not the one that kills, but the one that changes minds.

But man is not made for defeat. A man can be destroyed but not defeated.

I don’t play tennis for money or fame. I play because I love it.

当被问及SpaceX连续发生三次故障时

专注于你能控制的事情，不要浪费精力在你无法控制的事情上。

Heredity is nothing but stored environment.