"A sustainable relationship with the Earth nurtures a sustainable relationship with God, because we acknowledge and honor the power of reciprocity, that there are in fact limits and consequences of what we desire. If we act on the premise that we are not alone, that other individuals and creatures have wants and needs, that our definition of community is not just human-centered but Creation-centered, then we begin to engage in a spiritual economics that promises to be more unselfish than our present relationship to others. We cannot continue to simply take from the Earth without giving back something in return, even if that means drawing on principles of restraint, generosity, gratitude, and compassion."