Environmentalist Quotes and aphorisms about get John Muir 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 Greta Thunburg Greta Thunburg ,, The most common criticism I get is that I'm being manipulated and you shouldn't use children in pol... Paul Hawken Paul Hawken