The truth is: the natural world is changing. And we are totally dependent on that world. It provides our food, water and air. It is the most precious thing we have and we need to defend it.

Poetry should burn like fire.

数学的真正力量在于它简化复杂事物的能力，使不可理解的事物变得可理解。

I'm not afraid to take risks.

预测未来的最好方式就是创造未来。