Man is a competitive creature, and the seeds of conflict are built deep into our genes. We fought each other on the savannah and only survived against great odds by organising ourselves into groups which would have had a common purpose, giving morale and fortitude.

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.'

You can now modify the genes of large animals, and the largest animal we are concerned with is the human.

I don't much like being a public figure, because so often how people appear is not how they really are, and I think one of the issues about our society is that we make judgments about people on the basis of very flimsy evidence.

There needs to be clearer communication for the public avout how valuable it [animal testing] is

There were never any doctors in my family. But my grandparents and my mother had a strong social conscience that was formative.

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.