复杂性理论告诉我们，并非所有问题都是平等的；有些问题本质上比其他问题更难。
"Complexity theory teaches us that not all problems are created equal; some are inherently harder than others."
The future of energy must be built on both innovation and responsibility.
It is during our darkest moments that we must focus to see the light.
Collaboration across borders is key to solving the challenges of global hunger.
So, I'm going to end it there. But what I really want to stress is: by all means, success, yes. But let's accept the strangeness of some of our ideas. Let's probe away at our notions of success. Let's make sure our ideas of success are truly our own.
