 For present purposes, the worry is that life satisfaction may not have the kind of significance happiness is normally thought to have. This may pose a difficulty for the identification of life satisfaction with happiness: for people frequently seem to use happiness as a proxy for well-being, a reasonably concrete and value-free stand-in that facilitates quick-and-dirty assessments of welfare. Given the discovery that someone is happy, we might infer that he is doing well; if we learn that someone is unhappy, we may conclude that she is doing poorly. Such inferences are defeasible: if we later find that the happy Ned’s wife and friends secretly hate him, we need not decide that he isn’t happy after all; we simply withdraw the conclusion that he is doing well. So long as happiness tracks well-being well enough in most cases, this sort of practice is perfectly respectable. But if we identify happiness with life satisfaction, then we may have a problem: maybe Sally is satisfied only because she values being grateful for the good things in life. This sort of case may not be merely a theoretical possibility: perhaps the very high rates of self-reported life satisfaction in the United States and many other places substantially reflects a broad acceptance of norms of gratitude and a general tendency to emphasize the positives, or perhaps a sense that not to endorse your life amounts to a lack of self-regard. It is not implausible that most people, even those enduring great hardship, can readily find grounds for satisfaction with their lives. Life may have to be pretty hard for a person to be incapable of affirming it.