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.

In real life nothing means anything. Stuff happens and there just is no structure.

But I quite like the way you can talk about science without necessarily using mathematics, but using metaphors instead.

I think predictability is built into any good novel in some way - you begin reading Anna Karenina and you know pretty much what's going to happen at the end. But that doesn't mean you know what's going to happen in the middle. For me, it's that sense of what happens in the middle that's important.

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.

Homeopaths argue that water has a memory.

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?