Definitely you don't become famous by doing something bad; that's a professional death sentence.

When you're a little different than others, it takes a little more time to fit in. If you really want to be there, there are no ingredients you need other than effort, perseverance and teamwork.

A lot of people, I think, would love to see the earth from above, wear a spacesuit. Certainly, when I was a kid, I wanted to wear a spacesuit.

I'm 45, and I'm still at school, essentially. Even after being assigned to the mission, I had to write a number of exams, with people commenting on my performance.

Nobody is going anywhere in 10 years.

I am definitely a little more nervous for my colleagues when I'm working at mission control than I am myself, on the shuttle.

You're always under the microscope, you don't know which mission you're going to get. It's a surprise.