My sister is a chiropractor and she says I have an unusually flexible lower back, but I don't do yoga, and I don't feel like I'm very bendy.

Practice being in the moment when you are running, whether you are on your own or in the race.

I never thought that I would be so attracted to television, but I don't think gigs like 'Dexter' come along too often.

In school I was always being cast as the clown. And then I did 'The Exorcism of Emily Rose,' and once people hear you scream, they can't un-hear it. But I don't mean to say that I've been typecast, either.

There's a perspective that I've gained as an astronaut that I didn't get from my science activities. In my science activities, I learned by the seat of my pants. Spending 17 years as an astronaut, I learned the NASA formalism of systems engineering as if my life depended on it. Literally.

I am not involved in any 'issues' because it's too sensitive for me - or my wife - to get involved. Every time we express an opinion it becomes a whole thing in itself. And the whole purpose of living in the countryside was to get away from hundreds of people. My wife fell off a horse, and suddenly there are hundreds of people around.

It would be fantastic to spend your whole life trying to pursue something and then finally, at the last moment, you achieve it. You know, instead of getting it in the middle of the pursuit and spending the second half giving it meaning.

You can never regret anything you do in life. You kind of have to learn the lesson from whatever the experience is and take it with you on your journey forward.