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It has been said that although God cannot alter the past, historians can; it is perhaps because they can be useful to Him in this respect that He tolerates their existence.

有人说，虽然上帝不能改变过去，但历史学家可以;也许正因为它们在这方面对他有用，他才容忍了它们的存在。

— Samuel Butler 塞缪尔·巴特勒