If we want to share the riches of our planet equitably, it would seem that we must learn how to have enough. Many of us believe that not taking more than our fair share, and focusing on our needs rather than on endless greed, makes us a good person. And yet this insistence on enough, the belief that if we we take more then someone else will suffer, is a form of scarcity thinking, a form of fear. In an abundant world, we can all have a life of plenty - and this should be our communal ambition, the celebration of a thriving humanity on a thriving planet. By shifting to an abundance mindset, we can celebrate a life of plenty.