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His face is turned towards the past.... The angel would like to stay, awaken the dead, and make whole that which has been smashed. But a storm is blowing from Paradise; it has got caught in his wings with such violence that the angel can no longer close them. This storm irrestistibly propels him into the future to which his back is turned, while the pile of debris before him grows skyward. This storm is what we call progress.
Anne McClintock (Wed,) studied this question.
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