If in the 1930s nuclear weapons had been invented and the Allies had been faced by Nazi SS20s and Backfire Bombers, would it then have been morally right to have handed Hitler control of one of the most terrible weapons man has ever made? Would not that have been the one way to ensure that the thousand year Reich became exactly that? Would not unilateralism have given to Hitler the world domination he sought?

I do not understand the unilateralists. If they hated nuclear weapons as much as I do they would want them down in the world as a whole. I am the true disarmer, I keep peace and freedom and justice with it.

My first guiding principle is this: willing and active co-operation between independent sovereign states. Europe will be stronger precisely because it has France as France, Spain as Spain, Britain as Britain, each with its own customs, traditions and identity. It would be folly to try to fit them into some sort of identikit European personality.

There are forces more powerful and pervasive than the apparatus of war. You may chain a man, but you cannot chain his mind. You may enslave him, but you will not conquer his spirit. In every decade since the war Soviet leaders have been reminded that their pitiless ideology only survives because it is maintained by force. But the day will come when the anger and frustration of the people is so great that force cannot contain it. Then the edifice cracks; the mortar crumbles; one day, liberty will dawn on the other side of the wall.

From my experience let me say this: in today's world it is no bad thing for a politician to have had the benefit of a scientific background. And not only politicians. Those who work in industry, in commerce, in investment. Indeed, so important has it become that I believe we are right to make science a compulsory subject for all schoolchildren.

To those waiting with bated breath for that favorite media catchphrase, the U-turn, I have only this to say, ‘You turn if you want; the lady’s not for turning.

The Russians put guns before butter. We put just about everything before guns.