Say you're working for a big overseas aid organization. You can't leave home in a Mercedes Benz, travel 80 kilometers to work in a great concrete structure where there are diesel engines thundering in the basement just to keep it cool enough for you to work in, and plan mud huts for Africa! You can't get the mud huts right if you haven't got things right where you are. You've got to get things right, working for you, and then go and say what that is.

Permaculture creates a cultivated ecology, which is designed to produce more human and animal food than is generally found in nature.

We're only truly secure when we can look out our kitchen window and see our food growing and our friends working nearby.

I confess to a rare problem - gynekinetophobia, or the fear of women falling on me - but this is a rather mild illness compared with many affluent suburbanites, who have developed an almost total zoophobia, or fear of anything that moves. It is, as any traveller can confirm, a complaint best developed in the affluent North American, and it seems to be part of blue toilet dyes, air fresheners, lots of paper tissues, and two showers a day.

There are a few societies that show signs of having been very rational about the physics of construction and the physics of real life. Some of the old middle-Eastern societies had downdraft systems over whole cities, and passive, rapid-evaporation ice-making systems. They were rational people using good physical principles to make themselves comfortable without additional sources of energy.

If you're dealing with an assembly of biological systems, you can bring the things together, but you can't connect them.

Compressed air can provide limitless amounts of clean energy using technology we have had for hundreds of years.