Now, I'm an atheist. I really don't believe for a moment that our moral sense comes from a god.

It should simply be an empirical matter whether the climate is changing or not and whether we're responsible. But the various sides of the debate have now become so tribal that it's no longer a matter of changing our views as more information comes in.

The moment you have children and a mortgage you want things to work; you're locked into the human project and you want it to flourish.

What I've discovered and really confirmed to myself is that opera really likes loud colours, and you need something bold, something savage, unpredictable, passionate. You can't really run a two-hour opera round some muted murmuring.

I always used to deny this, but I guess what I'm really saying is that I was writing to shock... And I dug deep and dredged up all kinds of vile things which fascinated me at the time.

Scientists do stand on the shoulders of giants, just as do writers. Conversely, in the arts we do make discoveries. We do refine our tools. So I am arguing with, or at least playing with, the idea that art never improves.