There weren't any astronauts until I was about 10. Yuri Gagarin went into space right around my 10th birthday.

After assembly complete, when we have a larger crew on orbit, a more complex vehicle, more laboratories and more robot arms, maybe we'll have room for specialists. But right now we don't.

I think it's going to be a very important, unique data set in terms of measuring the behavior of your lower body in space and trying to figure out what we can do to preserve bone and muscle density.

It took me a long time to get selected as an astronaut. In fact, I applied for 20 years before I was selected.

A civilization that only looks inward will stagnate. We have to keep looking outward; we have to keep finding new avenues for human endeavor and human expression.

It so happened that my goals kind of matched my career progression toward becoming an astronaut.

My dad served in two wars has been flying airplanes for 60 years now. He was certainly quite an inspiration.

Every day, we get a little bit closer to the kind of expertise and the kind of experience we're going to need to go there. I'd love to be the guy walking on Mars.

We would like to carry out 100 percent, or maybe more, of our scientific program; I would like to devote some of my spare time toward extra scientific work.

The Space Shuttle will stop directly below the Space Station and Sergei and I will be looking out two different windows looking straight down at the Space Shuttle.

We survived life by adaptation to the changing situation.

BE LIKE A BULL...DON'T LIKE A DOG....BE

If you want change and don’t make choices that reflect the change, you are making a choice to keep things the same.

Naturally, this country can't stand truth.

The church exists for the sake of those outside it.

Somebody did complain to me and tell me that my clothes were so loud they couldn't hear me sing.

I sometimes hear preachers speak of the sad condition of men who live without God in the world, but a scientist who lives without God in the world seems to me worse off than ordinary men.

I hated waiting. If I had one particular complaint, it was that my life seemed composed entirely of expectation.

I haven't, in the 23 years that I have been in the uniformed services of the United States of America, ever violated an order - not one.

All things that come into being and grow are earth and water.