The downside of my celebrity is that I cannot go anywhere in the world without being recognised. It is not enough for me to wear dark sunglasses and a wig. The wheelchair gives me away.

A scientist’s work is never done.

舞台是我感觉最有活力的地方，与人们的能量相连。

Great leaders listen more than they speak.

You have enemies? Good. That means you've stood up for something, sometime in your life.

世界上充满了神奇的事物，耐心地等待着我们的感官变得更加敏锐。

Sometimes the most profound mathematics comes from playing with simple ideas until they reveal their hidden complexity.

I don't think about age. People who tell me I'm too old to do something, I just ignore them.