If you're a simple person today, and want to live simply, that is awfully seditious. And to advise people to live simply is more seditious still.

The greatest change we need to make is from consumption to production, even if on a small scale, in our own gardens. If only 10% of us do this, there is enough for everyone. Hence the futility of revolutionaries who have no gardens, who depend on the very system they attack, and who produce words and bullets, not food and shelter.

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.

My students are constantly amazing me.

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.

If you get someone who looks after himself and those around him, that's a deep ecologist. He can talk philosophy that I understand. People like that don't poison things, they don't ruin things, they don't lose soils, they don't build things they can't sustain.

If we lose the forests, we lose our only teachers.