Any parent wants the best for their children. I am not going to make a choice for my child on the basis of what is the politically correct thing to do.

I think the center ground have got to become the people of change again and not the guardians of the status quo. And that is the weakness it comes to in our campaign. You can see it in your politics, you can see it everywhere.

When my parents were growing up the world's population was under three billion. During my children's lifetime, it is likely to exceed nine billion. You don't need to be an expert to realise that sustainable development is going to become the greatest challenge we face this century

If what the science tells us about climate change is correct, then unabated it will result in catastrophic consequences for our world.

Lord Cranborne told the leader of the opposition to 'back me or sack me' - he succeeded in doing both.

If you've got communities that feel they've been left behind, if you've got - as you do in Britain at the moment, you have communities that believe they're being changed by immigration, that they don't have job opportunities, and that they're disregarded and that they don't - they've got no stake in a future which embraces globalization, you've got to address that issue.

Fifteen years ago, if you said business will help save the environment people would have laughed at you. Today, I believe that is a serious proposition.