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

A library doesn't need windows. A library is a window.

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.

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

Once a new technology rolls over you, if you're not part of the steamroller, you're part of the road.

A building is not something you finish. A building is something you start.

The great problem with the future is that we die there. This is why it is so hard to take the future personally, especially the longer future, because that world is suffused with our absence.

All buildings are predictions. All predictions are wrong.

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.

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.

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

...the enduring human need to be remembered.

you will need a great deal of self-discipline not to lose your sense of balance, humility, and commitment.

Our stories may be singular, but our destination is shared.

Knowledge for a warrior is something that comes at once, engulfs him, and passes on

Take no moment for granted.

Apology is the most courageous gesture we can make to ourselves.

When I was a boy we didn't wake up with Vietnam and have Cyprus for lunch and the Congo for dinner.

Where we find hate and darkness, may we bring love and hope, in order to give a more human face to society.

You know, you're kind of squeamish for such a lethal person

Seventy-five percent of MS sufferers are women