Tyrant
5. Ruler to subject. There should be benevolence among the rulers and loyalty among the subjects.
Ozai had known Iroh was not worthy of the title of Fire Lord from the time he was very young. It was in the way Iroh was passionate about tea instead of training, women instead of war, pai sho instead of pain.
The conference with his father had not gone well, Ozai thought. Azulon could not see that his son was soft and broken in Ba Sing Se without his son.
Ozai supposed he should not have belittled the loss of Lu Ten. After all, Lu Ten was a more worthy son than Ozai's own. Zuko's poor showing in front of Fire Lord Azulon was proof enough of that, and the irony of it was not lost on Ozai that both he and his father were cursed with weak sons.
However, if Azulon would not do his duty as the leader of his country and pick the best successor, Ozai would do it for him. He would find a way to gain his father's throne, for he knew it belonged to him. Never Iroh. It had never been meant for Iroh.
For weak sons were useless and would be weak Lords, something he seemed to know instinctively that Azulon did not.
Ozai remembered the angry words of his Fire Lord and took hold of an idea.
Perhaps there would be a use for his son after all.
Relationship definitions come from Lewis M. Hopfe's Religions of the World.