I've always loved airplanes and flight. The space program was really important to me as a kid. I still have a photo of Armstrong and Aldrin on the moon in my living room.

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.

There are just two people entitled to refer to themselves as "we"; one is the editor and the other is the fellow with a tapeworm.

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.

If the Earth gets hit by an asteroid, it's game over. It's control-alt-delete for civilization.

I hope climate science becomes the big thing. And then what I want is electrical engineers to solve the world's energy problems, energy distribution problems. I want mechanical engineers to make better transportation systems. I want chemical engineers to develop better solar panels, and so on.

In another couple centuries I'm sure that worldview won't even exist. There's no evidence for it.