Macbeth, fiend?

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…showed last 75 words of 1716 total…and became mentally deranged, even before Macbeth. Overall, the remarks that Malcolm made may have their justifications, as to an extent, both Macbeth and Lady Macbeth are a pair of "butcher and his fiend queen". However, to an extent these justifications may not fit either Macbeth or Lady Macbeth, as they have had their own humanity within them, as if the "butcher" and "fiend" were just a part of Macbeth and Lady Macbeth's alter ego.