"What's the next thing that's going to kill me?" is a mantra for pilots and astronauts.

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’m happy. But some beauty is nonesuch - The gently sloping path across the wood, The wretched bridge that’s just a little skewed And that, for which, I won’t be waiting much.

I want to be so successful that one day my mom never has to buy a thing for herself again

NHPrimary Trivia: The Republican candidates have not spoken to a black person since Herman Cain dropped out.

Educational romanticism asks too much from students at the bottom of the intellectual pile, asks the wrong things from those in the middle, and asks too little from those at the top.

I was always shy and had a huge fear of being onstage.

I want to give as many Canadians the opportunity to be successful and if we can use their athletic gifts to get them a free degree or a free diploma across the border then I guess I'm doing my job.

I learned a long time ago in Hollywood that the only person I should vote for is myself.

Physiology is the basis of all medical improvement and in precise proportion as our survey of it becomes more accurate and extended, it is rendered more solid.

Long-term travel doesn't require a massive bundle of cash; it requires only that we walk through the world in a more deliberate way.

There’s no accounting for the mysteries of the human heart