人们要求言论自由作为他们很少使用的思想自由的补偿。

Small changes in farming practices can lead to big impacts on global food security.

你唯一能做的就是尽量说实话。

I am not a hero of mathematics. I'm not even that successful; that is why I don't want to have everybody looking at me.

我认为有一个反馈循环非常重要，你要不断思考自己做了什么以及如何做得更好。

The best solutions often come from listening to diverse perspectives and finding common ground.

老年人相信每一件事物；中年人猜疑每一件事物；青年人什么都懂。