This article is a précis of the book, Living well now and in the future: Why sustainability matters. It provides an overview of the book, focusing especially on its conceptualization of the nature and normative dimensions of sustainability. The latter include its formulation of an ethic of sustainability and eudaimonic theory of justice. Some central claims are that the fundamental normative concern of sustainability is the long-term preservation of opportunity to live well, and that the conceptualization of preservation of opportunity (...) should be focused on the satisfaction of basic psychological needs associated with fulfillment of potential. (shrink)