Solomon spends a lot of time describing the fool. The reason why his son needs to know what a fool looks like is (1) to not make friends with fools and (2) so his son will not be a fool. There are times in life when we are doing foolish things and acting like a fool but do not even realize it. So what Solomon does is that he describes the actions of the fool. No one wants to think that they are fools.
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