Our remnants of wilderness will yield bigger values to the nation's character and health than they will to its pocketbook, and to destroy them will be to admit that the latter are the only values that interest us.

The life of every river sings its own song, but in most the song is long marred by the discords of misuse.

Harmony with land is like harmony with a friend; you cannot cherish his right hand and chop off his left. That is to say, you cannot love game and hate predators; you cannot conserve the waters and waste the ranges; you cannot build the forest and mine the farm. The land is one organism.

Never did we plan the morrow, for we had learned that in the wilderness some new and irresistible distraction is sure to turn up each day before breakfast. Like the river, we were free to wander.

Agricultural science is largely a race between the emergence of new pests and the emergence of new techniques for their control.

Land health is the capacity for self-renewal in the soils, waters, plants, and animals that collectively comprise the land.

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.