translation.en: Once we see that markets and commerce, when extended beyond the material domain, can change the character of the goods themselves, can change the meaning of the social practices, as in the example of teaching and learning, we have to ask where markets belong and where they don't, where they may actually undermine values and attitudes worth caring about.
translation.zh: 一旦我们了解 市场和交易 跨越物质领域的时候 可以改变商品本身的特质 可以改变社会常规的意义 执教和学习就是例子 我们就要问，哪些地方适合市场 哪些地方不适合 哪些地方其实可能会破坏 我们该关心的价值和态度