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.

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.

We don't have any power of creation - we have only the power of assembly. So you just stand there and watch things connect to each other, in some amazement actually. You start by doing something right, and you watch it get more right than you thought possible.

Choose your friends from people who you like what they do - even though you mightn't like what they say.

I teach self-reliance, the world's most subversive practice. I teach people how to grow their own food, which is shockingly subversive. So, yes, it’s seditious. But it’s peaceful sedition.

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

If you let the world roll on the way it's rolling, you're voting for death. I'm not voting for death.