I remember having my attention taken by a printed sheet on an office wall and in the reading, believed it was a protest from some environmentalist about the depredations of the British Columbia forests. It described the denuding of the mountainsides and the clearcutting of the coniferous forests. Not till I came to the part about invaders burning what was left did I check the author's name. It was Socrates,talking about ancient Greece! There is, as can be seen, a point of no return.