translation.en: When we think about human capital we think about the things we can measure easily -- things like grades, SAT's, degrees, the number of years in schooling.
translation.zh: 当我们想到人力资本 我们想到的是那些评鉴标准-- 学校成绩、考试成绩、学位成绩， 和在学校的岁月年华。