There is no problem so bad that you cannot make it worse

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.

Did time move forward, through people, or did people move through it, like clouds across the sky?

It's great to see our players get some of their dreams come true.

To get something you must give something away. To hold something you must give something away. To love something you must give something away.

This song ain't black or white and as far as I know it don't infringe on anyone's copyright.

You people with hearts,' he said once, 'have something to guide you, and need never do wrong; but I have no heart, and so I must be very careful.

She [Venison] had never travelled and so could invent all kinds of strange places without being limited, as travelled people are, by knowledge of certain places only.

And if we get caught, I will claim I made you go. At gunpoint. I am American. People will assume I'm armed.

Excuses are tools of the incompetent

If you're having a very high-adrenaline, high-movement experience in virtual reality and then all of a sudden you're back in your office, that disconnect is pretty notable.