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

“Wilderness is not a luxury but a necessity of the human spirit, and as vital to our lives as water and good bread. A civilization which destroys what little remains of the wild, the spare, the original, is cutting itself off from its origins and betraying the principle of civilization itself.”

“Most every charge you level at American capitalism applies with equal force to communism, with this nice difference, that the Reds make no pretense at such frivolities as civil liberties or environmentalism. The differences in degree are so great that they result in a radical difference in kind.”

“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.”

“To all accusations of excessive development the administrators can reply, as they will if pressed hard enough, that they are giving the public what it wants, that their primary duty is to serve the public not preserve the wilds. "Parks are for people" is the public relations slogan, which decoded means that the parks are for people-in-automobiles. Behind the slogan is the assumption that the majority of Americans, exactly like the managers of the tourist industry, expect and demand to see their national parks from the comfort, security and convenience of their automobiles.Is this assumption correct? Perhaps. Does that justify the continued and increasing erosion of the parks? It does not.”

“What I am really writing about, what I have always written about, is the idea of human freedom, human community, the real world which makes both possible, and the new technocratic industrial state which threatens the existence of all three. Life and death, that's my subject, and always has been - if the reader will look beyond the assumptions of lazy critics and actually read what I have written. Which also means, quite often, reading between the lines: I am a comic writer and the generation of laughter is my aim.”

“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.”