Quote from : The Humanure Handbook: A Guide to Composting Human Manure Book

When viewed at the next quantum level of perspective, from which the Earth is seen as an organism and humans are seen as microorganisms, the human species looks like a menace to the planet. In fact, the human race is looking a lot like a disease -- comprised of organisms excessively multiplying, mindlessly consuming, and generating waste with little regard for the health and well-being of its host -- planet Earth.