OK, well maybe I have to get back to Judaism. In the sense that if I look at me and my forebears forever stretching back to I don't know, whenever there's no sense of place and therefore no sense of nationality.

Now that we have a democracy and you can go back and the airport air is not laden with evil any more, you can actually breathe oxygen when you land in Johannesburg.

It was but then, when you're, one of the great poisonous events that have infected us all who were in South Africa is that the idea of difference is drip fed into your veins. It's that that you fight.

Jews have had to carry around their own sense of self in a carpet bag and I think perhaps too much emphasis might be being put on nationality and on the other hand patriotism, that sort of thing.

It is possible to argue that our present conception of revolution was staked out more securely in science than in political action.

I come from a pretty scientific family. My sister is a neurologist and my brother is an engineer.

I want to have all that scientific information that we're building be used in designing the future so that people who make geographic decisions - and here it's not just land-use planners, but it's everyone: foresters, transportation engineers, people who buy a house - can analyze all of these information layers and design a future.

Science is constantly proved all the time. If we take something like any fiction, any holy book, and destroyed it, in a thousand years' time, that wouldn't come back just as it was. Whereas if we took every science book and every fact and destroyed them all, in a thousand years they'd all be back because all the same tests would be the same result.