In 2002, I published the third book of the series: Authentic Happiness. This book sets forward a larger theory about the positive side of life: “happiness” is a scientifically unwieldy notion, but there are three different forms of it you can pursue. For the “Pleasant Life,” you aim to have as much positive emotion as possible and learn the skills to amplify positive emotion. For the “Engaged Life,” you identify your highest strengths and talents and recraft your life to use them as much as you can in work, love, friendship, parenting, and leisure. For the “Meaningful Life,” you use your
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