If an alien lands on your front lawn and extends an appendage as a gesture of greeting, before you get friendly, toss it an eightball. If the appendage explodes, then the alien was probably made of antimatter. If not, then you can proceed to take it to your leader.

No one with a living room radio that was a piece of furniture at the time would say, gee. I want to carry that around on my hip pocket. That was not a thought until NASA initiated this whole exercise. So there's an influence that's not just spinoff.

To learn more about science, turn off your electronic device and go outside and look around a bit. Nature is calling you. Go on. The internet will still be here.

I've said multiple times that the world's first trillionaire is going to be the person who exploits the resources of asteroids, the natural resources that are rare on earth and common on selected asteroids. So there are many different reasons you might want to go into space. You might want to spend your honeymoon on the far side of the moon.

As religion is now practiced and science is now practiced, there is no intersection between the two. That is for certain. And it’s not for want of trying. Over the centuries, many people—theologians as well scientists - have tried to explore points of intersection. And anytime anyone has declared that harmony has risen up, it is the consequence of religion acquiescing to scientific discovery. In every single case.

Something bad happened on both Mars with its dried-up watercourses and Venus with its runaway greenhouse effect. Could something bad happen on Earth too? Our species currently turns row upon row of environmental knobs, without much regard to long-term consequences.

There are books on my shelf that I'm not into. They are things I don't know anything about yet. It's going to lead me off into a new place. The books don't represent an interest; they represent a source of my ignorance.