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質量不是奢侈品；它是必需品。

當隨機化不可行時，匹配方法可以是一個強大的工具。

The story of women’s progress in the labor market is also a story of unfinished revolutions.

The world needs more people who are willing to challenge the status quo.

擺脫誘惑的唯一方法是屈服于它。

There is nothing more deceptive than an obvious fact.