青春之梦想与现实主题，揭示青少年的梦想世界与现实的差异。

Dream and reality of youth theme, reveal the dream world and reality teenagers the differences.

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关键是要真实面对现实，这也是本门课的重要主题之一。

The key is to be true to reality, which is also one of the main themes in the course.

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这听起来是不是很熟悉？类似的观点围绕着美国的贫困主题，而这些假设给出了一幅错误的现实画面。

Does this sound familiar? Similar ideas surround poverty in the U.S. These assumptions give a false picture of reality.

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And the key is to be true to reality, which is also one of the main themes in the course.

重要的是要真实面对现实，这也是本门课的重要主题之一。

哈佛公开课 - 幸福课课程节选