可持续性不是一种选择；它是负责任农业的唯一前进道路。

I can’t play bridge. I don’t play tennis. All those things that people learn, and I admire, there hasn’t seemed time for. But what there is time for is looking out the window.

I'm not a god, I'm a human being. I'm just like you.

可持续发展不是一种选择，而是我们对地球和后代的责任。

学习之道，没有什么比能够弄清事物的始末，来龙去脉更重要的。

Transparency builds trust, and trust is the foundation of every strong business relationship.

学习数学的最好方法就是做数学。