" All those “why” questions are rooted in culture, which is to say, in ethical beliefs. I emphasize the point not to denigrate the achievements of scientists, but only to remind that natural science cannot by itself fathom the sources of the crisis it has identified, for the sources lie not in the nature that scientists study but in the human nature and, especially, in the human culture that historians and other humanists have made their study. "

― , Wealth of Nature: Environmental History and the Ecological Imagination