“Christopher, like most people, didn't like his universe being unfathomable, so I doubted that a Zen koan would help him.”

“I pray for meaning. I pray for the limits of reality to become clear. For a world – and a type of being – that makes sense. I pray for a life after death that is not like this life. I pray for the end of mystery. What would a life be like with all the mysteries solved? If there were no questions, there’d be no stories. If there were no stories, there’d be no language. If there was no language there’d be no . . . What?”

“Even if you did drop into someone's consciousness, you'd have all their memories and desires and hang-ups right there in front of you. And as you say, in an eternity you'd get the chance to know everything once enough time had passed. You'd become unable to judge anyone.' 'You'd end up being completely compassionate,' I said. 'You wouldn't be able to judge someone once you understood them and their motivations. You'd become them, like Rowan said, and so it would be like judging yourself.”

“If you threw a brick at someone you would be responsible for them feeling pain, presumably,' Libby said. 'But if you do the right thing and it makes someone feel bad, isn't that their problem? Then again, how do you even know what the right thing is? Who decides?' 'It's so confusing. I am sure about Mark, but I was sure about Bob before that, and Richard before that. Maybe Mark isn't for ever, I just think he is now when I can't have him. I have to face up to this about myself. I fall in love like that.' She clicked her fingers. 'I always have. For other people, love is like some rare orchid that can only grow in one place under a certain set of conditions. For me it's like bindweed. It grows with no encouragement at all, under any conditions, and just strangles everything else. Good metaphor, huh?”

“Patrick opens his arms about three feet wide and, with one finger pointing up on each hand, tries to show the scope of this thing. I notice that he doesn’t look at his hands as he does this, but at the wall behind me. It suddenly occurs to me that when people describe size this way, they’re relying on perspective to help them. He’s not saying ‘It’s this big.’ He’s saying ‘It would look this big from here if it was over there.”

“Aquinas wondered what would happen if God wanted to achieve universal resurrection. In other words, bringing everybody who had ever lived back to life at the same time. What would happen to cannibals, and the people they ate? You couldn't bring them all back at the same time, because the cannibals are made of the people they have eaten. You could have one but not the other. Ha.' I looked at Rowan. 'That's a good example of a paradox.”

“Most people would look at an animal in a cage and instinctively feel that it should be set free. . . . It's a dangerous world out there, filled with predators. . . . What would you prefer? A comfortable, safe, warm, cosy life in a cage, or an uncertain life of freedom.”