“There is nothing very remarkable about being immortal; with the exception of mankind, all creatures are immortal, for they know nothing of death. What is divine, terrible, and incomprehensible is to know oneself immortal.”

“All men's souls are immortal, but the souls of the righteous are immortal and divine.”

“Nothing but truth is immortal.”

“I don't know what to say really -- except that you look immortal and I look bereft.”

“Immortality,' said Crake, ' is a concept. If you take 'mortality' as being, not death, but the foreknowledge of it and the fear of it, then 'immortality' is the absence of such fear. Babies are immortal. Edit out the fear, and you'll be…”

“I swear I think there is nothing but immortality!”

“We are not meant to know the time or the nature of our deaths (for all of us secretly hope that we may be immortal).”

“What are you worried about, buddy? Isn't death just a door to immortality?”

“Know that my soul is immortal. Know this for yourself”

“You know what's funny about death? I mean other than absolutely nothing at all? You'd think we could remember finding out we weren't immortal. Sometimes I see children sobbing airports and I think, "Aww. They've just been told.”