There's nothing I believe in more strongly than getting young people interested in science and engineering, for a better tomorrow, for all humankind.

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.

Unlike science, creationism cannot predict anything, and it cannot provide satisfactory answers about the past.

You stop planetary exploration, those people who do that extraordinary work are going to have to go do something else.

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.

There really is no such thing as race. We all came from Africa. We are all of the same stardust. We are all going to live and die on the same planet, a Pale Blue Dot in the vastness of space. We have to work together.

I don't perceive an anti-religious agenda, especially with regard to Christians and Christianity.