When a fantasy turns you on, you're obligated to God and nature to start doing it right away.

We have wished, we eco-freaks, for a disaster or for a social change to come and bomb us into Stone Age, where we might live like Indians in our valley, with our localism, our appropriate technology, our gardens, our homemade religion-guilt-free at last!

There's no unemployment in squatter cities. Everyone works. One-sixth of humanity is there. It's soon going to be more than that.

One advantage of a solar collector in space: It would be some kind of origami thing that would unfold and be relatively light because it doesn't have gravity to deal with.

Whenever I hear the word "share" I would reach for a gun if I had one. "Share" is frequently followed by the word "feelings", and I have enough of my own thank you; please do us both a favor and repress yours.

Carbon tax has the advantage of basically being able to subsidize one set of activities that you want with another set of activities that you don't want. It's like a cigarette tax.

Information wants to be free. Information also wants to be expensive.