My faith is in my colleagues. And when I meet other writers, journalists, who've been doing this for a long time, trying to make us aware of what it is that we're living in, I put my faith in those people.

We simply do not understand our place in the universe and have not the courage to admit it.

Because you have seen something doesn't mean you can explain it. Differing interpretations will always abound, even when good minds come to bear. The kernel of indisputable information is a dot in space; interpretations grow out of the desire to make this point a line, to give it direction. The directions in which it can be sent, the uses to which it can be put by a culturally, professionally, and geographically diverse society are almost without limit. The possibilities make good scientists chary.

If I were to offer any advice to young writers, it would be this: be discriminating and be discerning about the work you set for yourself. That done, be the untutored traveler, the eager reader, the enthusiastic listener. Put what you learn together carefully, and then write thoughtfully, with respect both for the reader and your sources.

You can't learn anything from saguaro cactus, from ocotillo. They are just passing through; their roots, their much heralded dormancy in the dry season, these are only illusions of permanence. They know even less than you do.

Conversations are efforts toward good relations. They are an elementary form of reciprocity. They are the exercise of our love for each other. They are the enemies of our loneliness, our doubt, our anxiety, our tendencies to abdicate. To continue to be in good conversation over our enormous and terrifying problems is to be calling out to each other in the night. If we attend with imagination and devotion to our conversations, we will find what we need; and someone among us will act—it does not matter whom—and we will survive.

Watching the animals come and go, and feeling the land swell up to meet them and then feeling it grow still at their departure, I came to think of the migrations as breath, as the land breathing. In spring a great inhalation of light and animals. The long-bated breath of summer. And an exhalation that propelled them all south in the fall.