Ethical behavior is doing the right thing when no one else is watching- even when doing the wrong thing is legal.

The rich diversity of the world's cultures reflects a corresponding diversity in the wilds that gave them birth.

He who hopes for spring with upturned eye never sees so small a thing as Draba. He who despairs of spring with downcast eye steps on it, unknowing. He who searches for spring with his knees in the mud finds it, in abundance.

If in a city we had six vacant lots available to the youngsters of a certain neighborhood for playing ball, it might be "development" to build houses on the first, and the second, and the third, and the fourth, and even the fifth, but when we build houses on the last one, we forget what houses are for.

What avail are forty freedoms without a blank spot on the map?

The worthiness of any cause is not measured by its clean record, but by its readiness to see the blots when they are pointed out, and to change its mind.

This song of the waters is audible to every ear, but there is other music in these hills, by no means audible to all. On a still night, when the campfire is low and the Pleiades have climbed over rimrocks, sit quietly and listen, and think hard of everything you have seen and tried to understand. Then you may hear it - a vast pulsing harmony - its score inscribed on a thousand hills, its notes the lives and deaths of plants and animals, its rhythms spanning the seconds and the centuries.