伟大的工程以你不理解的方式解决你未曾意识到的问题。

I never doubted myself. I knew that I was going to be something.

Climate change is one of the biggest challenges of our time, and we must take action now.

We hold ourselves back in ways both big and small, by lacking self-confidence, by not raising our hands, and by pulling back when we should be leaning in.