“Testing leads to failure, and failure leads to understanding.”

“With any luck, by the time NASA's space probe hits Pluto, you'll be booking a spaceflight with a privately run suborbital airline.”

“Space travel is the only technology that is more dangerous and more expensive now than it was in its first year. Fifty years after Yuri Gagarin, the space shuttle ended up being more dangerous and ...”

“The photographs of space taken by our astronauts have been published all over the place. But the eye is a much more dynamic mechanism than any camera or pictures. It's a more exciting view in perso...”

“By 1973, we had a space station, the Skylab, and we had multiple probes going up to planets. So, all this wonderful stuff happened in 10 to 15 years. About that time, there should have been enormou...”

“Airplanes were invented by natural selection. Now you can say that intelligent design designs our airplanes of today, but there was no intelligent design really designing those early airplanes. The...”

“For the two of us, home isn't a place. It is a person. And we are finally home.”

“The vast and beautiful world is the home we share together.”

“I stood there a long while, staring at that tree. It looked so strongSo beautiful. Hurt right down the middleBut alive and well. Cee touched my shoulderLightly. Frank? Yes? Come on, brother. Let's ...”

“When he worked, he really worked. But when he played, he really PLAYED.”

“Back in the days when gladiators hacked away at each other, there was always the man who decided whether the defeated should live or die. The job is usually given to the Emperor in movies, but in f...”

“Pursuing fun is exhausting. Having fun is just fun. Much more relaxing just to do your work, don't you think? I mean if you enjoy it.”

“I picture it like Judgement Day,' he says finally, his eyes on the water. 'We'll rise up out of our bodies and find each other again in spirit form. We'll meet in that new place, all of us together...”

“There are few times that I feel more at peace, more in tune, more Zen, if you will, than when I force myself to unplug.”

“[B]ecause the minimum costs of being an organization in the first place are relatively high, certain activities may have some value but not enough to make them worth pursuing in any organized way. ...”