Environmentalist Quotes and aphorisms about heart 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 John Muir ,, The more I see of deer, the more I admire them as mountaineers. They make their way into the heart ... Paul Hawken ,, When cattle ranchers clear rain forests to raise beef to sell to fast-food chains that make hamburg... Garrett Hardin Lewis Gordon Pugh