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当一扇幸福的门关起的时候，另一扇幸福的门会因此开启，但我们却经常看这扇关闭的大门太久，而忘了注意到那扇已经为我们而开启的幸福之门。

原文： When one door of happiness closes, another opens; but often we look so long at the closed door that we do not see the one which has been opened for us.