At first, Haemon flatters the absolutist king Creon by declaring his complete loyalty to him and by extension the state. This was a smart move as it puts the king at ease and hopefully in a better position to listen to good counsel. Haemon is not questioning the king's authority but his wisdom in this matter.
Haemon relates the intelligence that the people of Thebes think the punishment is too much for a pious deed. Creon sidesteps the argument reverting back to his unquestioned authority to rule. He is missing the point. He may have absolute authority but is still subject to errors in his judgment like any mortal. His ego appears to cloud his reason. He accuses Haemon of being under the influence of love for a woman (true) and insults Haemon. Again, that sidesteps the issue of whether the king's harsh decree will be good for the kingdom (it will not). Creon is questioning Haemon's motives rather than addressing the objection directly.
Haemon explains that men are not omniscient with...
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