Environmentalist Quotes and aphorisms about those John Muir John Muir ,, Indians walk softly and hurt the landscape hardly more than the birds and squirrels, and their brus... 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 Paul Hawken Luther Burbank Luther Burbank William Bartram