John Major put the 'er' back into Conservative, David Cameron's put the Con into Conservative - and Norman Lamont put the VAT into Conservative!

We know from history that the way wars are concluded is absolutely the key to whether or not there is any peace to be kept.

Essentially, by 2050 we need all activities outside agriculture to be near zero carbon emitting if we are to stop carbon dioxide levels in the atmosphere growing

If you decide to run for the leadership, you have to go through it with the people you love. But you also have to protect them and I am determined to protect my mum.

And the truth is, those who are terrorists only have to succeed once, and those of us who are trying to build an inclusive society have to succeed every time.

The biggest opportunity in 2013 is in Africa. It has seven out of the ten fastest-growing economies in the world. In Nigeria alone there are 100 million people with mobile phones. In total, 300 million Africans - five times the population of Britain - are in the middle class.

First, climate change is the greatest long-term threat faced by humanity. It could cause more human and financial suffering than the two world wars and the great depression put together. All countries will be affected, but the poorest countries will be hit hardest. Secondly, the costs of inaction far outweigh the costs of action.