It is not enough that we do our best; sometimes we must do what is required.
仅仅做到我们的最好是不够的,有时候我们得达到要求。
Climate models are like time machines - they allow us to peer into possible futures.
I don't have to prove anything to anyone. I only have to follow my heart and concentrate on what I want to say to the world. I run my world.
True leadership is about empowering others to achieve greatness.