The mind of the polyglot is a very particular thing, and scientists are only beginning to look closely at how acquiring a second language influences learning, behavior and the very structure of the brain itself.

We are all born with an innate understanding of interpersonal equity - the idea that if you lend me your rake today, I'll respond in kind when you come to borrow my shovel tomorrow. Or nearly all of us are born with that. Psychopaths aren't.

There are a lot of obstacles in the way of our understanding animal intelligence - not the least being that we can't even agree whether nonhuman species are conscious. We accept that chimps and dolphins experience awareness; we like to think dogs and cats do. But what about mice and newts? What about a fly? Is anything going on there at all?

Learning to speak was the most remarkable thing you ever did.

Many people assume the diseases that kill us are pre-programmed into our genes. High blood pressure by 55, heart attacks at 60, maybe cancer at 70, and so on... But for most of the leading causes of death, our genes usually account for only 10-20 per cent of risk.

Why should I be worried about dying? It's not going to happen in my lifetime!

If you can keep something very personal, like a song, like a color, like a story, deep in your heart, then nobody can destroy that. Nobody can destroy your imagination; nobody can destroy your love.

I wanted very badly to be a mum. I'm a very maternal person. But at the point that I met Emilio I was focusing on a career. I never would have thought that I would get married at 21 and much less be a mum by 23.