Mathematics is a place where you can do things which you can't do in the real world.

You know, I'm not terribly fast at my times tables, because that's not what I think mathematics is about.

Theory is needed to tell you where to look.

I think my primary audience is in some sense an adult audience, because I think that will then have a knock-on effect for children.

But actually a code is a language for translating one thing into another. And mathematics is the language of science. My big thesis is that although the world looks messy and chaotic, if you translate it into the world of numbers and shapes, patterns emerge and you start to understand why things are the way they are.

When people ask me what my religion is, I say it's the Arsenal.

The best mobile phone had the best mathematician. They know how to fit a huge amount of data into a small amount of space. How to do things efficiently, how to do them cleverly.