As I have discovered again and again, things are never as bad (or as good) as they seem at the time.

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 test of a first-rate intelligence is the ability to hold two opposed ideas in the mind at the same time, and still retain the ability to function.

Christ never told his disciples that they would get an Academy Award for their performances, but He did tell them to expect to have troubles.

Excessively sweet praise can rot your ego over time.

It will pass, whatever it is.

It is no coincidence that the Western attraction to sublime landscapes developed at precisely the moment when traditional beliefs in God began to wane.

Being professional is just really clearly the way to go and helps you on the road to longevity.

Just in the nick of time they realized that it was their own habitat they were wrecking -- that they weren't merely visitors.

Don't let others define you. Don't let the past confine you. Take charge of your life with confidence and determination and there are no limits on what you can do or be.

I think the important thing about my appointment is not that I will decide cases as a woman, but that I am a woman who will get to decide cases.

I'm for people bettering themselves, no matter who they are and where they are, doing all they can to be all they can be.