There is no pain equal to that which two lovers can inflict on one another. This should be made clear to all who contemplate such a union. The avoidance of this pain is the beginning of wisdom for it is strong enough to contaminate the rest of our lives.

There is nothing worth having that can he obtained by nuclear war - nothing material or ideological - no tradition that it can defend. It is utterly self-defeating.

Four years of world war at a cost in human suffering which our minds are mercifully too limited to imagine led to the very clear realization that international anarchy must be abandoned if civilization was to survive.

You should be careful what you wish for as the reasons for war get confused. One person can be very clear in their motives but others can have different agendas.

Look at what President Kennedy managed to achieve during the Cuban missile crisis. If Bush had been president in 1962 do you think he would have avoided a nuclear war?

One nuclear war is going to be the last nuclear - the last war frankly if it really gets out of hand. And I just don't think we ought to be prepared to accept that sort of thing.

It was my duty to shoot the enemy and I don't regret it. My regrets are for the people I couldn't save: Marines soldiers buddies. I'm not naive and I don't romanticize war. The worst moments of my life have come as a SEAL. But I can stand before God with a clear conscience about doing my job.

The surrealists and the modern movement in painting as a whole seemed to offer a key to the strange postwar world with its threat of nuclear war. The dislocations and ambiguities in cubism and abstract art as well as the surrealists reminded me of my childhood in Shanghai.

We still live with this unbelievable threat over our heads of nuclear war. I mean are we stupid? Do we think that the nuclear threat has gone that the nuclear destruction of the planet is not imminent? It's a delusion to think it's gone away.

This programme to stop nuclear by 2020 is just crazy. If there were a nuclear war and humanity were wiped out the Earth would breathe a sigh of relief.