“If you hope for any sort of dialogue and unity with all factions on the vaguely leftist or radical side of politics, you must cease from silly verbal abuse. If you don't want it, then we go on as we are, fractious and impotent.”

“It is vital that we avoid any hint of moral superiority in our dealings with one another in the environmental movement; if it developed into factionalism it would destroy us, as factionalism has destroyed so many other progressive movements in America.”

“Devoted though we must be to the conservation cause, I do not believe that any of us should give it all of our time or effort or heart. Give what you can, but do not burn yourselves out -- or break your hearts. Let us save at least half of our lives for the enjoyment of this wonderful world which still exists. Leave your dens, abandon your cars and walk out into the great mountains, the deserts, the forests, the seashores. Those treasures still belong to all of us. Enjoy them to the full, stretch your legs, expand your lungs, enliven your hearts -- and we will outlive the greedy swine who want to destroy it all in the name of what they call GROWTH.God bless America -- let's save some of it.Long live the weeds and the wilderness yet!”

“In any nation but the USA, it is taken for granted that a man of distinction, ability, wealth or power will keep a mistress and a few girlfriends on the side. Only in America, still suffering from its grotesque, hypocritical Puritan heritage, do we persist in attempting to deny and repeal a million years of basic primate biology.”

“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.”

“If people persist in trespassing upon the grizzlies' territory, we must accept the fact that the grizzlies, from time to time, will harvest a few trespassers.”

“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.”