At least half of every city is wrong. From latitude 30 degrees to latitude 60, say, you've got to have the long axis of the house facing the sun. If the land is cut up into squares, that makes half of all houses wrong if they face the road. Even houses way in the country, and way off the road, face the bloody road. And from there, you just go wronger all the way.

The value of land must, in the future, be assessed on its yield of potable water. Those property-owners with a constant source of pure water already have an economically-valuable "product" from their land, and need look no further for a source of income.

What is proposed herein is that we have no right, nor any ethical justification, for clearing land or using wilderness while we tread over lawns, create erosion, and use land inefficiently. Our responsibility is to put our house in order. Should we do so, there will never be any need to destroy wilderness.

One of the great rules of design is do something basic right. Then everything gets much more right of itself. But if you do something basic wrong - if you make what I call a Type 1 Error - you can get nothing else right.

Permaculture principles focus on thoughtful designs for small-scale intensive systems which are labor efficient and which use biological resources instead of fossil fuels. Designs stress ecological connections and closed energy and material loops. The core of permaculture is design and the working relationships and connections between all things.

Anything that's any good is self-perpetuating.

If you only do one thing, collect rainwater.