The real fight is about what should be in the marketplace and what should not. Should education be a marketable commodity? Should healthcare?

The question is not only what is grown but what it's used for. There's not going to be a mass transformation of dietary habits in rich countries-on the contrary, the first thing people do when they become more prosperous is to buy more meat.

What I worry about is climate change, because that would have untold effects that we can't even measure yet.

The real fight is about what should be in the marketplace and what should not. Should education be a marketable commodity? Should healthcare?

We're trying to run a 21st century society and economy with 19th century Darwinian, competitive, crude ideas.

Everything has to be done to build some sort of international democracy. We've seen only the tiniest beginnings of that.

I was recently looking at what they can actually do to reduce consumption of petrol. It would be quite possible to build automobiles out of carbon fibre that would be just as strong, weigh 10 times less and consume 10 times less petrol.