Heraclitus, whose obscure style gave him his surname, remarked: "One day is equal to every day." Different persons have interpreted the saying in different ways. Some hold that days are equal in number of hours, and this is true; for if by "day" we mean twenty-four hours' time, all days must be equal, inasmuch as the night acquires what the day loses. But others maintain that one day is equal to all days through resemblance, because the very longest space of time possesses no element which cannot be found in a single day, – namely, light and darkness, – and even to eternity day makes these
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