Environmentalist Quotes and aphorisms about also John Muir John Muir ,, Bread without flesh is a good diet, as on many botanical excursions I have proved. Tea also may eas... Greta Thunburg ,, The most common criticism I get is that I'm being manipulated and you shouldn't use children in pol... Greta Thunburg Greta Thunburg Paul Hawken Roberto Burle Marx Johan Rockstrom Johan Rockstrom Johan Rockstrom