Environmentalist Quotes and aphorisms about than John Muir John Muir John Muir ,, All the world lies warm in one heart, yet the Sierra seems to get more light than other mountains. ... John Muir ,, Indians walk softly and hurt the landscape hardly more than the birds and squirrels, and their brus... John Muir Aldo Leopold Paul Hawken Paul Hawken Paul Hawken Paul Hawken