Life is too short to be anything but happy.

The challenge of our time is to harness energy without harming the planet.

I'm always trying to grow and learn and better myself.

I focus on one thing and one thing only – that’s trying to win as many championships as I can.

我年青时以为金钱至上，而今年事已迈，发现果真如此。

If you don’t take risks, you’ll never know what you’re truly capable of.

好的市场设计能让个人激励与社会效率保持一致。