Many of the technologies we've invented are necessary to keep 6.5 billion people alive. We can't go back from that, so we need to decarbonize really rapidly.

A lot of scientists act on their beliefs and so do things that look crazy to the rest of us.

We are here to inscribe ourselves on the universe, and it is not inappropriate to remind ourselves of this when blank slates are given us.

Logic was to cognition as geometry was to landscape

Humans were still not only the cheapest robots around, but also, for many tasks, the only robots that could do the job. They were self-reproducing robots too. They showed up and worked generation after generation; give them 3000 calories a day and a few amenities, a little time off, and a strong jolt of fear, and you could work them at almost anything. Give them some ameliorative drugs and you had a working class, reified and coglike.

You can't choose your childhood, it's just what happens to you. But after that you choose. And that's really what (makes you).

It makes us a thread in a tapestry that has unrolled for centuries before us, and will unroll for centuries after us. We're midway through the loom, that's the present, and what we do casts the thread in a particular direction, and the picture of the tapestry changes accordingly. When we begin to to try to make a picture pleasing to us and to those who come after, then perhaps you can say that we have seized history.