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

Childhood is not dead. Children were worse off when we were hunter-gatherers; they were threatened in medieval times and exploited during the Industrial Revolution. Was it any better in the time of Charles Kingsley or Charles Dickens?

We must not fail to recognise that television can be a hugely positive influence in children's lives, one of the greatest educators in contemporary society and an increasing influence on all the children followed in 'Child of Our Time.'

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

Our aggression is a deep instinct which survives in all kinds of manifestations in modern man.

People think I appear on television to promote my image. That's not fair. I hate filming. I turned down 'Strictly Come Dancing.' But television is a wonderful opportunity to promote scientific ideas. 'Super Doctors' is a very thoughtful piece.

I don't like seeing myself on television and I don't enjoy filming. What I actually enjoy is thinking about how I am going to express something or how we are going to make the visual metaphor.