Why is it so important to take only what we really need? Because everything we take harms another life. I included this Native American teaching as one of the Nine Touchstones I offered as a counterpoint to the Ten Commandments in Rebirth of the Goddess.
Recently, I have begun to realize that the concept of taking only what you need is the heart of sustainability ethics, an ethical system that can orient us to living in harmony with others and the natural world. The practice of great generosity is its counterpoint. When you have worked for, received, or accumulated more than you need, you should give it away.