"Reading books about how to be happy can be a depressing business. Part of this is because one can’t help imagining the sad souls who buy them, hoping to turn around a troubled life for $27.99 or less. Indeed, the how-to manuals are only part of a broad, obsessive and flourishing effort to pursue happiness more directly and systematically than ever before. Courses in “positive psychology” attract thousands of students at elite universities; there is even a Journal of Happiness Studies, which has touted among many startling revelations the discovery that “Positivity was associated [through survey research] with norms about ideal life satisfaction such that countries and individuals who highly valued positive emotions were more likely to display positivity.” It doesn’t take a social scientist to see that a blizzard of how-to books on “positivity” suggests its lack in everyday life. Behind the facade of smiley-faced optimism, American culture seems awash in a pervasive sadness, or at least a restless longing for a sense of fulfillment that remains just out of reach". Seguono i titoli di vari libri sulla felicità che sembrano confutare che il "positive thinking" aiuti. Jackson Lears su thenation.