“I love you sons of bitches. You’re all I read any more. You're the only ones who’ll talk all about the really terrific changes going on, the only ones crazy enough to know that life is a space voyage, and not a short one, either, but one that’ll last for billions of years. You’re the only ones with guts enough to really care about the future, who really notice what machines do to us, what wars do to us, what cities do to us, what big, simple ideas do to us, what tremendous misunderstanding, mistakes, accidents, catastrophes do to us. You're the only ones zany enough to agonize over time and distance without limit, over mysteries that will never die, over the fact that we are right now determining whether the space voyage for the next billion years or so is going to be Heaven or Hell.”

“At what point do you give up - decide enough is enough? There is only one answer really. Never.”

“And yet in the end did we ever really give each other completely to the other? Do either of us even know how to really share ourselves? Imagine the house is on fire and I reach to save one thing - what is it? Do you know? Imagine that I am drowning and I reach within myself to save that one memory which is me - what is it? Do you know? What things would either of us reach for? Neither of us know. After all these years we just wouldn't know.”

“Time softens all griefs, they say, and it is useless to dwell on lives that might have been. We are granted only one life, and one is enough. Whom do such regrets profit? What do they achieve, except to bring us unhappiness?”

“strange, there's so much religion in the world, but only enough to make us fight over who is right, not enough to make us love one another.”

“People do it all the time--assume that they "know" what's going on in someone else's head. That's impossible. And to think it's possible is a mistake. A really big mistake. A life-ruining one if you're not careful.”