A (A)stupid person has no knowledge,
Nor does a (B)foolish person understand this:

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Senseless people(A) do not know,
    fools do not understand,

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Pay attention, you (A)stupid ones among the people;
And when will you understand, (B)foolish ones?

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Take notice, you senseless ones(A) among the people;
    you fools, when will you become wise?

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