Environmentalist Quotes and aphorisms about living John Muir John Muir John Muir Greta Thunburg Greta Thunburg Paul Hawken Paul Hawken Paul Hawken ,, Commercial institutions, proud of their achievements, do not see that healthy living systems - clea... Paul Hawken ,, Class of 2009: you are going to have to figure out what it means to be a human being on Earth at a ... Luther Burbank