translation.en: Rules and incentives don't tell you how to be a good friend, how to be a good parent, how to be a good spouse, or how to be a good doctor or a good lawyer or a good teacher.
translation.zh: 规则和奖励机制不会告诉你 怎样成为一个好朋友，怎样成为好的家长， 怎样成为一个好的配偶， 怎样成为一个好的医生，好的律师， 好的老师。