The experience of being in space didn't change my perspective of myself or of the planet or of life. I had no spiritual experience.

Science is fun. Science is curiosity. We all have natural curiosity. Science is a process of investigating. It's posing questions and coming up with a method. It's delving in.

On both of my flights, everything went very well.

Our future lies with today's kids and tomorrow's space exploration.

I slept just floating in the middle of the flight deck, the upper deck of the space shuttle.

I have a lot of common sense. I know what needs to be done and how to approach it. I have an ability to work with people on large enterprises.

There's a huge amount of pressure on every astronaut, because when you get right down to it, the experiments that are conducted on a space flight, or the satellites that are carried up, the work that's to be done, is important and expensive work, and you are up there for a week or two on a Space Shuttle flight. The country has invested a lot of money in you and your training, and the Space Shuttle and everything that's in it, and you have to do things correctly. You can't make a mistake during that week or two that you're in space.