My own field, the prevention of genetic disorders in babies, has been possible only because of humane work on animals.

I don't know whether it is important to study science at a young age, though current thinking emphasises the need.

Having a child is arguably the most important thing you do in life.

I went to school with butterflies of fear every day for years - from primary school onwards - not just worried about being bullied by classmates, but by teachers.

I like travelling on my own. It means I'm completely free to think about what's around me.

I used to work for the World Health Organisation in poor countries all over the world - Bangladesh, Korea, the Philippines and India. You learn a whole range of things about how other people are living and try to connect with them to gain an understanding of where they're coming from.

The disturbed individual who believes himself to be Christ, or to receive messages from God, is something of a cliche in our society. Ever since Sigmund Freud, many people have associated religiosity with neurosis and mental illness.