We are part of this universe; we are in this universe, but perhaps more important than both of those facts, is that the universe is in us.

Right now people think God is dark energy and dark matter, the spirit. Go ahead and think that, but the day we can tell you exactly what it is - that it's gremlins in the vacuum of space or whatever - then what's your recourse at that point?

Curiosity is a self-driven motivation to explore and to learn. Learning is like... you know, you have to take your medicine. And that is what it has become. And that's unfortunate.

Many people are unhappy because there was some point in their past where there was some glory day, and as they get older they're not creating more glory days. They reflect on a time that they will never reach again, and it brings some level of dissatisfaction into their lives. I have circumvented that by simply making incumbent upon myself to always be productive in ways that are consistent with my physical body, my mental state of knowledge, but more important, my presumed growth in wisdom that would come with age.

When you're advancing a frontier it stimulates creativity to find solutions.

Your center of mass is a place you cannot visit but you always carry with you. Like memories, it is part of life's baggage.

The number of people in the world engaged in this search for catastrophic impactors totals one or two dozen. How long into the future are you willing to protect Homo sapiens on Earth? Before you answer that question, take a detour to Arizona's Meteor Crater during your next vacation.