Environmentalist Quotes and aphorisms about through John Muir John Muir John Muir John Muir ,, The more I see of deer, the more I admire them as mountaineers. They make their way into the heart ... John Muir ,, No traveler, whether a tree lover or not, will ever forget his first walk in a sugar-pine forest. T... Greta Thunburg ,, I remember when I was younger, and in school, our teachers showed us films of plastic in the ocean,... Paul Hawken Paul Hawken Paul Hawken David R. Brower