Patriotism requires less and less of making the eagle scream, but more and more of making him think.

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.

Conservation is a state of harmony between men and land.

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

We console ourselves with the comfortable fallacy that a single museum piece will do, ignoring the clear dictum of history that a species must be saved in many places if it is to be saved at all.

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

Wilderness areas are first of all a series of sanctuaries for the primitive arts of wilderness travel, especially canoeing and packing.