I've put a lot of my life into making it possible to fly in space at all.

Spaceflight isn't just about doing experiments, it's about an extension of human culture.

Our role is to develop techniques that allow us to provide emergency life-saving procedures to injured patients in an extreme, remote environment without the presence of a physician.

Don't let life randomly kick you into the adult you don't want to become

Almost everything worthwhile carries with it some sort of risk.

Decide in your heart of hearts what really excites and challenges you, and start moving your life in that direction

Every single day you're the result of what you did on the days prior.

Focus on the journey, not on arriving at a certain destination.

Remember, nobody changes the world on their own.

Every decision you make, from what you eat to what you do with your time tonight, turns you into who you are tomorrow and the day after that.

The cool things about space is when you put your pants on here, you can put them on two legs at a time.

I wish you to know that you have been the last dream of my soul.

It doesn't matter where you've been, only where you are going.

A scary movie or a book isn't still made. But I'm waiting for that!

Which would be worse- to live as a monster, or to die as a free man?

I think, in our darkest moments, you have to find the humor, and you have to find the lightness.

I try very hard to handle things equally: ideas, materials, and images.

I think that there was a fad where everyone said, "I want you to create a signature step for my artist." The thing is, for me, music creates the step. The artist commands the step, you know?

I have sworn with my tongue, but my mind is unsworn. [Lat., Juravi lingua, mentem injuratem gero.]

Avoiding depression with large daily doses of television.

They say blood is thicker than water. Only in certain cases, you need water to live. You learn that in the basics.