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.

Pollution is an unused resource.

The first time I saw a review of one of my permaculture books was three years after I first started writing on it. The review started with, "Permaculture Two is a seditious book." And I said, "At last someone understands what permaculture's about."

We are surrounded by insurmountable opportunities

Anything that's any good is self-perpetuating.

When you get deep ecologists who are philosophers, and they drive cars and take newspapers and don't grow their own vegetables, in fact they're not deep ecologists - they're my enemies.

I think it's pointless asking questions like "Will humanity survive?" It's purely up to people - if they want to, they can, if they don't want to, they won't.