Growing up in Highland Park, in high school, I had some very influential teachers: I had a math teacher who taught calculus that helped me learn to be in love with mathematics; I had a chemistry teacher who inspired us to work what was in the class and to go beyond.

As a young boy growing up on the South Side of Chicago, I was inspired by the nascent space age.

I see no difference between scientific exploration and human exploration.

I think that space exploration as a broad activity is the most important things that humans can do. I've always found it fascinating, interesting, compelling, and I have a drive to go out into space.

One of the fundamental discoveries I made about myself - early enough to make use of it - was that I am driven to seize life and to understand it. The motor that pushes me is propelled by more than scientific curiosity.

Perhaps you could say that mountaineers are driven by ego or our competitiveness, but there's a lot more to it than that. Whether it's a huge face in the Himalaya or some crag in the woods behind your house, exploration offers us a unique perspective on the world that you can't really find anywhere else.

With the observable fact that scientific knowledge makes our lives better when applied with concern for human welfare and environmental protection, there is no question that science and technology can produce abundance so that no one has to go without.

There's always been a quality to being a science-fiction reader. Usually, you're the only one in your class, or there are only one or two in your whole town. You're always the guy who reads that strange stuff.