“Is despair wrong? Isn’t it the natural condition of life after a certain age? … After a number of events, what is there left but repetition and diminishment? Who wants to go on living? The eccentric, the religious, the artistic (sometimes); those with a false sense of their own worth. Soft cheeses collapse; firm cheeses indurate. Both go mouldy.”

“Our attitudes and opinions change, we develop new habits and eccentricities; but that's something different, more like decoration. Perhaps character resembles intelligence, except that character peaks a little later [...]. And after that, we're just stuck with what we've got. We're on our own. If so, that would explain a lot of lives, wouldn't it?”

“Does character develop over time? In novels, of course it does: otherwise there wouldn't be much of a story. But in life? I sometimes wonder. Our attitudes and opinions change, we develop new habits and eccentricities; but that's something different, more like decoration. Perhaps character resembles intelligence, except that character peaks a little later: between twenty and thirty, say. And after that, we're just stuck with what we've got. We're on our own. If so, that would explain a lot of lives, wouldn't it? And also—if this isn't too grand a word—our tragedy.”

“And what percentage of people take up the option to die off?’ She looked at me, her glance telling me to be calm. ‘Oh, a hundred per cent, of course. Over many thousands of years, calculated by old time, of course. But yes, everyone takes the option, sooner or later.’‘So it’s just like the first time round? You always die in the end?’‘Yes, except don’t forget the quality of life here is much better. People die when they decide they’ve had enough, not before. The second time round it’s altogether more satisfying because it’s willed.’ She paused, then added, ‘As I say, we cater for what people want.’I hadn’t been blaming her. I’m not that sort. I just wanted to find out how the system worked. ‘So … even people, religious people, who come here to worship God throughout eternity … they end up throwing in the towel after a few years, hundred years, thousand years?’‘Certainly. As I said, there are still a few Old Heaveners around, but their numbers are diminishing all the time.”

“Back in 'my day' – though I didn't claim ownership of it at the time, this is what used to happen: you met a girl, you were attracted to her, you tried to ingratiate yourself, you would invite her to a couple of social events – for instance the pub – and then ask her out on her own, then again, and after a goodnight kiss of variable heat, you were somehow, officially, 'going out' with her. Only when you were semi-publicly committed did you discover what her sexual policy might be. And sometimes this meant her body would be as tightly guarded as a fisheries exclusion zone.”

“...life is a gift bestowed without anyone asking for it; that the thinking person has a philosophical duty to examine both the nature of life and the conditions it comes with; and that if this person decides to renounce the gift no one asks for, it is the moral and human duty to act on the consequences of that decision.”

“After a long analysis of Robson’s suicide, we concluded that it could only be considered philosophical in an arithmetical sense of the term: he, being about to cause an increase of one in the human population, had decided it was his ethical duty to keep the planet’s numbers constant.”