我们都是自己的幽灵，徘徊在我们曾经生活过的地方。

Never let age be a barrier to learning or discovery.

The world needs energy that is affordable, reliable and cleaner.

Farmers are the backbone of our food system, and we must support them with the right tools.

The biggest mistake you can make is thinking you know everything.

世界是一种我们已忘记如何言说的语言。

最好的想法来自不同学科的交汇处。

种树的最佳时间是20年前，其次是现在。