There are roughly two philosophical literatures on “happiness,” each corresponding to a different sense of the term. One uses ‘happiness’ as a value term, roughly synonymous with well-being or flourishing. The other body of work uses the word as a purely descriptive psychological term, akin to ‘depression’ or ‘tranquility’. An important project in the philosophy of happiness is simply getting clear on what various writers are talking about: what are the important meanings of the term and how do they connect? (...) While the “well-being” sense of happiness receives significant attention in the contemporary literature on well-being, the psychological notion is undergoing a revival as a major focus of philosophical inquiry, following on recent developments in the science of happiness. This entry focuses on the psychological sense of happiness (for the well-being notion, see the entry on well-being). The main accounts of happiness in this sense are hedonism, the life satisfaction theory, and the emotional state theory. Leaving verbal questions behind, we find that happiness in the psychological sense has always been an important concern of philosophers. Yet the significance of happiness for a good life has been hotly disputed in recent decades. Further questions of contemporary interest concern the relation between the philosophy and science of happiness, as well as the role of happiness in social and political decision-making. (shrink)

It may even be held that [the intellect] is the true self of each, inasmuch as it is the dominant and better part; and therefore it would be a strange thing if a man should choose to live not his own life but the life of some other than himself. Moreover . . . that which is best and most pleasant for each creature is that which is proper to the nature of each; accordingly the life of the intellect is (...) the best and the pleasantest life for man, inasmuch as the intellect more than anything else is man. (shrink)

The psychological condition of being happy is best understood as a matter of a person’s emotional condition. I elucidate the notion of an emotional condition by introducing two distinctions concerning affect, and argue that this “emotional state” view is probably superior on intuitive and substantive grounds to theories that identify happiness with pleasure or life satisfaction. Life satisfaction views, for example, appear to have deflationary consequences for happiness’ value. This would make happiness an unpromising candidate for the central element in (...) a theory of well-being, as it is in L. W. Sumner’s work. Yet on an emotional state conception, happiness may prove to be a key constituent of well-being. The emotional state view also makes happiness less vulnerable to common doubts about the importance of happiness, and indicates that mood states are more important for well-being than is generally recognized. (shrink)