Young children and even infants work hard at mastering various kills and show spontaneous pleasure at their own accomplishment. John Nicholls explores the conditions that cause students to lose their unselfconscious involvement in a game or task and become concerned with how they are stacking up against others. Charting the development of children's concepts of luck, effort, and ability, he argues that with age they are increasingly prone to take superiority over others as the definition of success. An emphasis on interpersonal competition, which permeates Western society, exacerbates this...