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.

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.

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.

What we have is North Korea still pursuing path to a nuclear weapon state. So the majority of people's trust in North Korea has gone down considerably.

I believe the main solution is to gain the trust of Europe and America and to remove their concerns over the peaceful nature of our nuclear industry and to assure them that there will never be a diversion to military use.

Rocket scientists agree that we have about reached the limit of our ability to travel in space using chemical rockets. To achieve anything near the speed of light we will need a new energy source and a new propellant. Nuclear fission is not an option.

Bear in mind North Korea has been the leading source a leading source of nuclear technology and of missile delivery systems to some of the world's great rogues in Iran and Syria.

I think we can allow the therapeutic uses of nuclear transplant technology which we call cloning without running the danger of actually having live human beings born.

Nuclear arms and atomic power represent a technology in which coexistence with man is extremely difficult.

When you look at other countries that are developing the capabilities and the technology to deploy missiles of very significant destructive capability with nuclear chemical or biological warheads then the MAD dogma makes even less sense.

U.S. nuclear technology is one of this nation's most valuable secrets and it should have been protected.

I mean when you get down to very low numbers of nuclear weapons and you contemplate going to zero how do you deal with the reality of that technology being available to almost any country that seeks to pursue it? And what conditions do you put in place?

A total nuclear freeze is counterproductive - especially now when technology is rapidly changing and the Soviets have some important strategic advantages.

With a fourth generation of nuclear power you can have a technology that will burn more than 99 percent of the energy in the fuel. It would mean that you don't need to mine uranium for the next thousand years.

I believe that we were not as effective in the second term dealing with this issue of nuclear none proliferation as we had been during the first term when we stripped Libya and Iraq and A.Q. Khan and their capacity to proliferate nuclear technology.

When we're talking about technology that involves weapons of mass destruction nuclear chemical or biological weapons there has to be an element of preemption.

Don't let that weapon technology proliferate. Don't let Saddam Hussein get capability for nuclear or chemical weapons because he's already shown a willingness to use any weapon at his disposal.

Pro football is like nuclear warfare. There are no winners only survivors.

Indeed the whole human species is endangered by nuclear weapons or by other means of wholesale destruction which further advances in science are likely to produce.

One of the things that ultimately led me to leave mathematics and go into political science was thinking I could prevent nuclear war.

Of all the failed technologies that litter the onward march of science - steam carriages zeppelins armoured trains - none has been so catastrophic to prosperity as the last century's attempt to generate electricity from nuclear fission.