“People long to go backward in their imagination as well as forward. We don't wish simply to exist forever in some future; we wish to have existed in some distant past.”

“... some people - think only the present is real. The past and the future don't even exist. ... And some people say that the future and the present are made up of a lot of different worlds. Each world comes out of a different set of circumstances that might have happened in the past.”

“On Earth, we are unmanned by our longing for a pastoral past that never really existed; and that, if it had existed, could never exist again...on the Moon, there is no past to long for or dream about. There is no direction but forward.”

“He who denies the existence of God, has some reason for wishing that God did not exist.”

“the person I missed didn't exist anymore. People change. The things we like and dislike change. And we can wish they wouldn't all day long, but that never works.”

“I was, but then I realized that I was holding on to something that didn't exist anymore. That the person I missed didn't exist anymore. People change. The things we like and dislike change. And we can wish they couldn't all day long but that never works.”