History is made of empires, and the United States was by far and away the greatest, richest, and fairest empire that had every dominated the earth. Inevitably, it would fall. Empires always did. But we were lucky, you said. We got to participate in the most fascinating social experiment ever attempted.

I never, ever took you for granted. We met too late for that; I was nearly thirty-three by then, and my past without you was too stark and insistent for me to find the miracle of companionship ordinary.

We need to recognise that slowing population growth is one of the most cost-effective and reliable ways of easing pressure on our environment and securing a sustainable future for us all

One of my problems with terrorism is that it's self-evidently bad. The main thing that makes it complicated is the fact that it works. When you go at it with a moral hammer, it's really, really bad. It's so bad you wouldn't believe it because you don't accomplish anything. I think the one thing terrorists themselves are vulnerable to is mockery. It's an excellent weapon.

It is never persuasive to argue that you are not the kind of person who does what you are actually doing.

...You can only subject people to anguish who have a conscience. You can only punish people who have hopes to frustrate or attachments to sever; who worry what you think of them. You can really only punish people who are already a little bit good.

Time itself made all things rare.