The Moon has given us months, tides and a destination that ever-beckons. It's time we build a rocket and go to stay.

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.

The sacred-souls of authors are displayed in the beauty of their books.

We take gingko to sharpen our memories. We could be memorizing song lyrics instead.

To Make Something Good, You Must first Make it Bad

The Master and Margarita is my favorite. To me it’s the greatest exploration of the human imagination.

Friends should be very delicate and careful in administering pity as medicine, when enemies use the same article as poison.

In the writing, I'm just trying to go deeper, emotionally, and learn more about myself and reveal more and find a way to connect with people in new ways.

An ant on the move does more than a dozing ox.

A man who has nothing he is willing to die for has nothing worth living for

I do believe there are leaders who are like lightning and they come along and they lead. The Lincolns of the world, the Alexander the Greats, they do exist. They have existed.

Stress is your body's way of saying you haven't worked enough unpaid overtime.