It is my mission to change the world. I'm not kidding: Make no small plans, dream mighty things. I feel if we get enough people engaged in climate change, we will get enough people to change the world. We will revolutionize the way we produce electricity and provide clean water to people.

I am so old, I entered engineering school with a slide rule. And I left engineering school with a calculator. I can still use a slide rule but it's not a skill you especially need anymore.

What happens to other species also happens to us.

I just want to remind us all there are billions of people in the world who are deeply religious, who get enriched by the wonderful sense of community by their religion. But these same people do not embrace the extraordinary view that the Earth is somehow only 6,000 years old.

People that don't want to get down to the business at hand. Instead of just doing less, we have to find ways of doing more with less. That's the key to the future.

If you meet somebody who says he or she has never dreamed of flying, I don't believe you. I mean, they're lying.

If you have this idea that the earth is only 6,000 years old, you are denying, if you will, everything that you can touch and see. Youre not paying attention to whats happening in the universe around you.