I particularly liked this passage from Ted Simon's Jupiter's Travels. Simon travelled over 65,000 km around the world on his motorbike for four years in the 1970s. The book is about his journey, his experiences and a time when new lines were being drawn on the world map to mark new countries.
"There are shapes and forms which rise out of the natural order. Trees, caves and animal architecture lead us naturally to thatched roofs, stone houses and mud walls. If you knew this you would not choose to put up a roof in corrugated iron. Nor would you think of throwing a plastic bag in a stream, not because of what you have been told about pollution, but because the idea of a plastic bag in a stream is offensive in itself. Without this sense of what is naturally fitting you can be cleaning up the world with one hand and spreading poison with the other."