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唯一真正的监狱是恐惧,唯一真正的自由是从恐惧中解脱。
艺术家的职责是创造美。
Mathematics is the art of giving the same name to different things.
Ignoring isn’t the same as ignorance, you have to work at it.
Randomized evaluations can help us understand what works and what doesn't in development.