I wanted to be a snowplow driver when I was a kid. Growing up in the Rocky Mountains, that's the most glorious job you can imagine. But then my mother took me to a lecture about the solar system when I was 8, and I got hooked.

We're born with a curiosity about the universe. Those people who don't have a curiosity don't have it because it's gotten beaten out of them in some way.

When I ask myself what are the great things we got from the Renaissance, it's the great art, the great music, the science insights of Leonardo da Vinci. Two hundred years from now, when you ask what are the great things that came from this era, I think it's going to be an understanding of the universe around us.

I think that the future of the human race is to spread through the universe, and now is the time that we should be laying the foundations for that.

If you're successful, it's important to enjoy it! I love shopping for clothes, branded clothes. I love shopping in England, Dubai. I like to travel whenever I can.

The travel book is a convenient metaphor for life, with its optimistic beginning or departure, its determined striving, and its reflective conclusion. Journeys change travellers just as a good travel book can change readers.

I'm obsessed with the moon and space travel, so if I could incorporate that, I'd love to go to space.

The only way I'm going to support my family is to tour. I love playing, don't get me wrong. That 90 minutes every night, that's free. We get paid to travel. But every night, I have to get myself locked in. There are a thousand people that don't want to be disappointed, because they have a lot of expectations.