“I've flown in space four times now, so it's going to be hard in that respect, but I certainly look forward to going back to Earth. I've been up here for a really long time and sometimes, whe...”

“If we're going to go farther from Earth, to Mars or somewhere else someday, we have to have a good understanding of the psychological impact on people. And not only psychologically, but how...”

“There are definitely parts of Asia, Central America that when you look at them from space, you're always looking through a haze of pollution. As far as the atmosphere is concerned, and being...”

“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.”