“This space station [Yang Liwei] was little more than a giant Orbital Denial Station. If those charges were to detonate, the debris...any future space launch would be grounded for years. It was a "Scorched Space" policy. "If we can't have it, neither can anyone else.”

“Neither a space station nor an enlightened mind can be realized in a day.”

“I believe that the only way that the human race is gonna survive is to start colonizing space and setting up colonies on the moon, and then space stations.”

“It is true that we Russians have sent only four doctors into space in forty years of flight, but still I might have had chance to fly to Mir or International Space Station except for one fact. This is that I cannot urinate—is this the right word, Mr. Roth?—I cannot urinate on wheel of bus.”

“The only thing that scares me more than space aliens is the idea that there aren't any space aliens. We can't be the best that creation has to offer. I pray we're not all there is. If so, we're in big trouble.”

“A mathematician tells you that the wall of warped space prevents the Moon from flying out of its orbit yet can't tell you why an astronaut can go back and forth across that same space.”