梦千寻较高级复杂的劳动，是这样一种劳动力的表现，这种劳动力比较普通的劳动力需要较高的教育费用，它的生产需要花费较多的劳动时间。因此，具有较高的价值。——马克思
More advanced and complex labor, is the performance of this kind of labor force, this kind of labor is more common labor needs higher education expenses, it need to spend more time on the production. Therefore, it has a high value. — Marx
