Historians will consider this a dark age. Science historians can read Galileos technical correspondence from the 1590s but not Marvin Minskys from the 1960s.

The urgent finds you; you have to find the important. Importance is not fast. It is slow. It is not superficial. It is deep. And as a result, it's extremely powerful. When important matters go wrong, they undermine everything. When they go right, they sustain everything.

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!

The main problem with solar on the Earth's surface is that it is so intermittent, and we don't have decent storage yet.

If you don't like bacteria, you're on the wrong planet.

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.

If all of your electricity in your lifetime came from nuclear [energy], the waste from that lifetime of electricity would go in a Coke can.