Black bears, though, are not fearsome. I encountered one on the road to my house in Vermont, alone at night. I picked up two stones just in case, but I wasn't afraid of him. I felt a hunter's exhilaration and a brotherly feeling.

Once I climbed into a mountain lion's cage and she bounded at me and put her paw on my face, but she kept her claws withdrawn.

It's incongruous that the older we get, the more likely we are to turn in the direction of religion. Less vivid and intense ourselves, closer to the grave, we begin to conceive of ourselves as immortal.

Animals used to provide a lowlife way to kill and get away with it, as they do still, but, more intriguingly, for some people they are an aperture through which wounds drain. The scapegoat of olden times, driven off for the bystanders sins, has become a tender thing, a running injury. There, running away is me: hurt it and you are hurting me.

Indeed, if "biology is chemistry with history," as somebody has said, then nature writing is biology with love.

There often seems to be a playfulness to wise people, as if either their equanimity has as its source this playfulness or the playfulness flows from equanimity; and they can persuade other people who are in a state of agitation to calm down and smile.

True solitude is a din of birdsong, seething leaves, whirling colors, or a clamor of tracks in the snow.