The concept of conservation is a far truer sign of civilization than that spoilation of a continent which we once confused with progress.

There's an elegiac quality in watching [American wilderness] go, because it's our own myth, the American frontier, that's deteriorating before our eyes. I feel a deep sorrow that my kids will never get to see what I've seen, and their kids will see nothing; there's a deep sadness whenever I look at nature now.

If we were doomed to live forever, we would scarcely be aware of the beauty around us.

Soon the child’s clear eye is clouded over by ideas and opinions, preconceptions, and abstractions. Simple free being becomes encrusted with the burdensome armor of the ego. Not until years later does an instinct come that a vital sense of mystery has been withdrawn. The sun glints through the pines and the heart is pierced in a moment of beauty and strange pain, like a memory of paradise. After that day, we become seekers.

In this very breath that we take now lies the secret that all great teachers try to tell us.

When we are mired in the relative world, never lifting our gaze to the mystery, our life is stunted, incomplete; we are filled with yearning for that paradise that is lost when, as young children, we replace it with words and ideas and abstractions - such as merit, such as past, present, and future - our direct, spontaneous experience of the thing itself, in the beauty and precision of this present moment.

Simultaneously I am myself, the child I was, the old man I will be.