I don't have any particular recipe [for developing new proofs] ... It is the reason why doing research is challenging as well as attractive. It's like being lost in a jungle and trying to use all the knowledge that you can gather to come up with some new tricks, and with some luck you might find a way out.

如果时空穿梭是可能的，那从未来穿越回来的旅客在哪里呢？

I do gymnastics because I love it, not because I'm trying to be the best in the world.

最好的故事是那些挑战我们以不同方式看待世界的故事。

To live is the rarest thing in the world. Most people exist, that is all.

实现明天的唯一限制将是我们今天的疑虑。

If we had paid no more attention to our plants than we have to our children, we would now be living in a jungle of weeds.