If we open a quarrel between the past and the present, we shall find that we have lost the future. 如果我们对过去和现在纠缠不休，那么我们就会发现，我们丧失了未来。

If we open a quarrel between the past and the present, we shall find that we have lost the future. 如果我们对过去和现在纠缠不休，那么我们就会发现，我们丧失了未来。 

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