“the wilderness should be preserved for political reasons. We may need it someday not only as a refuge from excessive industrialism but also as a refuge from authoritarian government, from political oppression. Grand Canyon, Big Bend, Yellowstone, and the High Sierras may be required to function as bases for guerrilla warfare against tyranny...The value of wilderness, on the other hand, as a base for resistance to centralized domination is demonstrated by recent history. In Budapest and Santo Domingo, for example, popular revolts were easily and quickly crushed because an urbanized environment gives the advantage to the power with technological equipment. But in Cuba, Algeria, and Vietnam the revolutionaries, operating in mountain, desert, and jungle hinterlands with the active or tacit support of a thinly dispersed population, have been able to overcome or at least fight to a draw official establishment forces equipped with all of the terrible weapons of twentieth century militarism.”

“A man could be a lover and defender of the wilderness without ever in his lifetime leaving the boundaries of asphalt, powerlines, and right-angled surfaces. We need wilderness whether or not we ever set foot in it. We need a refuge even though we may never need to set foot in it. We need the possibility of escape as surely as we need hope; without it the life of the cities would drive all men into crime or drugs or psychoanalysis.”

“it will be objected that a constantly increasing population makes resistance and conservation a hopeless battle. this is true. unless a way is found to stabilize the nation's population, the parks can not be saved. or anything else worth a damn. wilderness preservation, like a hundred other good causes, will be forgotten under the overwhelming pressure of a struggle for mere survival and sanity in a completely urbanized, completely industrialized, ever more crowded environment. for my own part i would rather take my chances in a thermonuclear war than live in such a world.”

“We can have wilderness without freedom; we can have wilderness without human life at all, but we cannot have freedom without wilderness, we cannot have freedom without leagues of open space beyond the cities, where boys and girls, men and women, can live at least part of their lives under no control but their own desires and abilities, free from any and all direct administration by their fellow men.”

“What most people really desire is something quite different from industrial gimmickry- liberty, spontaneity, nakedness, mystery, wildness, wilderness.”

“The idea of wilderness needs no defense, it only needs defenders.”

“The automobile, which began as a transportation convenience, has become a bloody tyrant (50,000 lives a year), and it is the responsibility of the park service, as well as that of everyone else concerned with preserving both wilderness and civilization, to begin a campaign of resistance.”