Humans have made a huge hole in nature in the last 10,000 years. [With de-extinction,] we have the ability now, and maybe the moral obligation, to repair some of the damage.

Do what's good for humans, modeled on how humans already do things; ignore what's convenient for computers.

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

Civilization’s shortening attention span is mismatched with the pace of environmental problems.

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!

In our researches on the likely economic apocalypse it's become clear what is the prime survival tool for hard times: friends. Good friends. Lots of them.

When a generation talks just to itself, it becomes more filled with folly than it might have otherwise.