 Happiness, in short, is believed by most philosophers to be insufficient for well-being, and still less important for the good life. These points may seem to vitiate any substantial role for happiness in ethical thought. However, well-being itself is still regarded as a central concept in ethical thought, denoting one of the chief elements of a good life even if not the sole element. And there are reasons for thinking happiness important, both practically and theoretically, despite the worries noted above.