Aristotle said that philosophy begins in wonder. I believe it also ends in wonder. The ultimate way in which we relate to the world as something sacred is by renewing our sense of wonder. That's why I'm so opposed to the kind of miracle-mongering we find in both new-age and old-age religion. We're attracted to pseudomiracles only because we've ceased to wonder at the world, at how amazing it is.

We can only choose whether we will feel and not what we will feel.

There has always been a part of me that saw wilderness and risk-taking as the path to freedom.

If we had a better understanding of the ways we think about enemies, we might be able to think of more rational ways of settling conflict.

If we don't preserve forest habitat for spotted owls, then soon we won't have trees to refresh the air we breathe. And we're realizing that this applies to social ecology, as well.

We all yearn to fly. We are creatures of longing. We do not need to [physically fly] to be airborne. What I call the aerial instinct-the drive to transcend our present condition- is the defining characteristic of a human being. We are restless animals, eternal travelers who are forever in the process of becoming. Consciousness itself is a flight from the here and now to the beyond. Our reach always exceeds our grasp, which is what Heaven is for.

The Greeks invented the idea of nemesis to show how any single virtue, stubbornly maintained gradually changes into a destructive vice. Our success, our industry, our habit of work have produced our economic nemesis. Work made modern men great, but now threatens to usurp our souls, to inundate the earth in things and trash, to destroy our capacity to love and wonder.