“Why are we are in a state of crisis with the global environment?… 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. We are facing a global crisis today not because of how ecosystems function, but rather because of how our ethical systems function.”
– Worster (1993) The Wealth of Nature