What Is This Thing Called Happiness?

According to an ancient and still popular view — sometimes known as ''eudaimonism'' — a person''s well-being, or quality of life, is ultimately determined by his or her level of happiness. According to this view, the happier a person is, the better off he is. The doctrine is controversial in part because the nature of happiness is controversial. In What Is This Thing Called Happiness? Fred Feldm...