Our society is obsessed with achievement. Young people are pushed toward the next test or the "best" grammar school, high school, or college they can get into. Adults push themselves toward the highest-paying, most prestigious jobs, seeking promotions and public recognition. As Adam Gopnik points out, the result is not so much a rat race as a rat maze, with no way out. Except one: to choose accomplishment over achievement. Achievement, Gopnik argues,...