The biggest challenge is to be yourself in a world that is trying to make you like everyone else.

国际体系本质上是竞争性的，国家不断试图互相超越。

Sustainability isn't an option—it's a responsibility we owe to the next generation.

"We are all, in some way, prisoners of our time."

The human animal is a bad animal.

自然的韧性给了我希望。