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

Everything I know I imagine everyone else knows as well. And then everything that everyone else knows I imagine they know on top of what I know, so I'm constantly anxious about what everyone else knows.

So if we're all quarks and electrons ..." he begins. What?" We could make love and it would be nothing more than quarks and electrons rubbing together." Better than that," I say. "Nothing really 'rubs together' in the microscopic world. Matter never really touches other matter, so we could make love without any of our atoms touching at all. Remember that electrons sit on the outside of atoms, repelling other electrons. So we could make love and actually repel each other at the same time.

Over to my left is the big grey wall in front of the church. Are we the Thoughts of God? a poster asks. No, I realise. It's the reverse.

You tell them what a happy ending consists of, which is always individual success. You tell them that nothing irrational exists in this world, which is a lie. You tell them that conflict only exists only to be neatly resolved, and that everyone who is poor wants to be rich, and everyone who is ill wants to get better, and everyone who gets involved in crime comes to a bad end, and that love should be pure. You tell them that despite all this they are special, that the world revolves around them.

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.

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