Environmentalist Quotes and aphorisms about which John Muir John Muir John Muir John Muir John Muir John Muir ,, No traveler, whether a tree lover or not, will ever forget his first walk in a sugar-pine forest. T... Aldo Leopold Paul Hawken Paul Hawken ,, I doubt very much that the chief executives of any of the Fortune 500 corporations can name five ed... Paul Hawken