How should we evaluate the success of each person's life? Countering the prevalent philosophical perspective on the subject, Steven M. Cahn and Christine Vitrano defend the view that our well-being is dependent not on particular activities, accomplishments, or awards but on finding personal satisfaction while treating others with due concern. The authors suggest that moral behavior is not necessary for happiness and does not ensure it. Yet they also argue that morality and happiness are needed for living well, and together suffice to achieve that goal.