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

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.

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.

Anticipating problems and figuring out how to solve them is actually the opposite of worrying: it's productive.

Education gives you lights to see, wings to fly, and music to sing.

Ian was the kind of smart that makes your straight A student look like she’d drown in a wet paper bag. Ian was the kind of smart that scares people.

Persistence is the most powerful force on earth, it can move mountains.

The fascist state is the corporate state.

I found that almost everyone had something interesting to contribute to my education.

Memories of ice and Trent surfaced, and I wrapped my arms around my middle. I had saved him, and he had saved me. What was wrong with us?

I have witnessed the tremendous energy of the masses. On this foundation it is possible to accomplish any task whatsoever.

The mind scolds the heart, which makes excuses and goes its own way.

Books open windows to the world and have the power to transform lives.

Some people want to call me an Appalachian writer, even though I know some people use regional labels to belittle.