Nature is also great fun. To pretend that nature isn't fun is to miss much of the joy of being alive.

Our sense of safety depends on predictability, so anything living outside the usual rules we suspect to be an outlaw, a ghoul.

Life becomes a lot simpler for a creative person when he or she finds the routine that works best. ... get in the habit of going through the routine every day, and on some of those days, you're going to be lucky and have done some good work. ... Go to your study, close the door, invent your confidence.

Symbolic of life, hair bolts from our head[s]. Like the earth, it can be harvested, but it will rise again. We can change its color and texture when the mood strikes us, but in time it will return to its original form, just as Nature will in time turn our precisely laid-out cities into a weed-way.

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.

Artificial intelligence is growing up fast, as are robots whose facial expressions can elicit empathy and make your mirror neurons quiver.

If cynicism is inevitable as one ages, so is the yearning for innocence. To children heaven is being an adult, and to adults heaven is being children again.