We would lie on coral sand, below sugary stars, watching Cassiopeia mount her throne and the Great Bear wash its paws in the South. I would say, "I have a secret to tell you." And, folding me in your arms, boyish and sly, you would answer: "Whisper it into my mouth.

As the most social apes, we inhabit a mirror-world in which every important relationship, whether with spouse, friend or child, shapes the brain, which in turn shapes our relationships.

Home is where the heart is, we say, rubbing the flint of one abstraction against another.

There is a furnace in our cells, and when we breathe we pass the world through our bodies, brew it lightly, and turn it loose again, gently altered for having known us.

Flying has changed how we imagine our planet, which we have seen whole from space, so that even the farthest nations are ecological neighbors. It has changed our ideas about time. When you can gird the earth at 1,000 m.p.h., how can you endure the tardiness of a plumber? Most of all, flying has changed our sense of our body, the personal space in which we live, now elastic and swift. I could be in Bombay for afternoon tea if I wished. My body isn't limited by its own weaknesses; it can rush through space.

Working from home meant we could vary snack and coffee breaks, change our desks or view, goof off, drink on the job, even spend the day in pajamas, and often meet to gossip or share ideas. On the other hand, we bossed ourselves around, set impossible goals, and demanded longer hours than office jobs usually entail. It was the ultimate "flextime," in that it depended on how flexible we felt each day, given deadlines, distractions, and workaholic crescendos.

Culture is what people invent when they have lost nature.