When I find too many puzzles about the way explanations are given about why there is inequality - why people who work the hardest in the world end up being the poorest - I can't just sit back and not try to understand why the gaps between people are increasing, or why there are so many homeless and hungry people in the world.

I absolutely get thrills from taking on these big guys and recognizing how, behind all their power, they are so empty. I just keep going at it. Each of these balloons does deflate. I’ve seen a lot of balloons get deflated in my life.

We could replace people with fossil fuels, have higher and higher levels of industrialization, of agriculture, of production, without thinking of the green-house gases we were admitting, and climate change is really the pollution of the engineering paradigm, when fossil fuels drove industrialism. To now offer that same mindset as a solution is to not take seriously what Einstein said: that you can't solve the problems by using the same mindset that caused them.

The time has come to reclaim the stolen harvest and celebrate the growing and giving of good food as the highest gift and the most revolutionary act.

The people who see the population explosion in the Malthusian way - as a geometric progression - forget that population growth is not a biological issue. People are not increasing in numbers out of stupidity and ignorance. Population growth is an ecological phenomenon linked very intimately to other issues, such as the usurpation of the resources which allow people to live.

I think we have reached a stage now where we need to find solutions to economic injustice in the same place and in the same ways that we find solutions to sustainability. Sustainability on environmental grounds and justice in terms of everyone having a place in the production and consumption system - these are two aspects of the same issue. They have been artificially separated and have to be put back again in the Western way of thinking.

The best and most evolved technologies are those that do not destroy the very base on which we live