Sure science involves trial and error. Scientists refine theories each day. But as they do they help us grasp more clearly the wonders of the world and the universe.

The science is clear that there is an increase in the amount of CO2 in the atmosphere. What is not clear from the science is how much of that increase is caused by human activity and what also is not clear is what impact those increases have on the climatic cycle.

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.

What has become clear from the science is that we cannot burn all of the fossil fuels without creating a very different planet.

First I think the science of monetary economics has clearly gotten better.

I think it's science and physics are just starting to learn from all these experiments. These experiments have been carried out hundreds and hundreds of times in all sorts of ways that no physicist really questions the end point. I think that these experiments are very clearly telling us that consciousness is limitless and the ultimate reality.

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

The central task of science is to arrive stage by stage at a clearer comprehension of nature but this does not at all mean as it is sometimes claimed to mean a search for mastery over nature.

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.

The media need superheroes in science just as in every sphere of life but there is really a continuous range of abilities with no clear dividing line.

Shun no toil to make yourself remarkable by some talent or other yet do not devote yourself to one branch exclusively. Strive to get clear notions about all. Give up no science entirely for science is but one.

Clearly romantic comedy is my franchise genre I don't mind saying that it's true. I love doing them and hopefully always will do them.

Writing fiction has developed in me an abiding respect for the unknown in a human lifetime and a sense of where to look for the threads how to follow how to connect find in the thick of the tangle what clear line persists.

I am for a clear distinction between public and private life. I believe private matters should be regulated in private and I have asked those close to me to respect this.

It is already clear after twenty years of socialism in Russia that if you do not provide your society with a new religion it will gradually revert to the old one.

Let me say this loud and clear. There is a world of difference between terrorist acts and the Islamic Shari'a. Islam is not only a religion but a way of life. And at its heart lie the sacred principles of tolerance and dialogue.

Then of course there are those sad occasions when a poet or a writer has not grown and one has to let them go because they're just not making headway. But we have a very clear personal relationship with the authors.

Putin has a lot at stake here and restoring the relationship with the United States and there are already signs as Sandy mentioned that he's moving in the right direction to begin to ascertain that their trade with Iran is not used for the production of nuclear weapons.

Clearly the Chinese know that we want a good relationship with them.

This is a very important relationship we have with Russia the relationship over the nuclear arsenal that they have obviously is important. They're a very powerful country.

Clearly once the student is no longer a student the possibilities of relationship are enlarged.

One thing you can say about nuclear power: the people who believe it is the silver bullet for America's energy problems never give up.

The oil companies regard nuclear power as their rival who will reduce their profits so they put out a lot of disinformation about nuclear power.

This nuclear option is ultimately an example of the arrogance of power.