“I think there are lots of ways to exercise ambition and accomplish things using leadership without going into elected politics. So, categorically, I have no intention of going into elected p...”

“And then finally, I'm the commander, so I am fundamentally responsible for the lives of the other people on board and the health and longevity of the space station. I need to bring six peopl...”

“It's a really big deal to do a spacewalk. It's much riskier than staying indoors. It's complex. It uses up a lot of the precious resources onboard. It uses up oxygen. It uses up carbon dioxi...”

“Two things are infinite: the universe and human stupidity; and I'm not sure about the universe.”

“I'm selfish, impatient and a little insecure. I make mistakes, I am out of control and at times hard to handle. But if you can't handle me at my worst, then you sure as hell don't deserve me...”

“You've gotta dance like there's nobody watching, Love like you'll never be hurt, Sing like there's nobody listening, And live like it's heaven on earth.”

“So many books, so little time.”

“You know you're in love when you can't fall asleep because reality is finally better than your dreams.”

“The person, be it gentleman or lady, who has not pleasure in a good novel, must be intolerably stupid.”