The way our desires evolve both defines and designs the entire history of humanity. As humankind’s desires developed, they urged people to study their environment so they could fulfill their wishes. Unlike minerals, plants, and animals, people constantly evolve. For every generation, and for each person, desires grow stronger and stronger.
People began to want to change nature and use it for themselves. Instead of wanting to adapt themselves to nature, they began wanting to change nature to fit their needs. They grew detached from nature, separated and alienated from it and from each other. Today, many, many centuries later, we are discovering that this was not a good idea. It simply doesn’t work.

Courtesy of http://www.youtube.com/watch?v=rjBfAxGoGtw