To keep every cog and wheel is the first precaution of intelligent tinkering.

I do not imply that this philosophy of land was always clear to me. It is rather the end result of a life journey.

On motionless wing they emerge from the lifting mists, sweep a final arc of sky, and settle in clangorous descending spirals to their feeding grounds. A new day has begun on the crane marsh.

The good life of any river may depend on the perception of its music; and the preservation of some music to perceive.

Conservation is a state of harmony between men and land.

Wilderness is a resource which can shrink but not grow... the creation of new wilderness in the full sense of the word is impossible.

There are idle spots on every farm, and every highway is bordered by an idle strip as long as it is; keep cow, plow, and mower out of these idle spots, and the full native flora, plus dozens of interesting stowaways from foreign parts, could be part of the normal environment of every citizen.