He admitted to wrapping himself up in his studies, so that Antonio, in taking on the Duke's role, actually began to believe he was the rightful duke and that Prospero was incapable of ruling. Prospero seemed unaware of the idea that power can corrupt, as it did with Antonio. His brotherly love and trust blinded him to his brother's faults and actions until it was too late. He was complacent in his belief that his deputy and his team would always be there for him. But he did nothing to keep their loyalty or to lead that team.
Antonio was greedy, ambitious and ruthless, using the King of Naples, Prospero's enemy, to help throw his brother and niece into exile. He loved power and looked for more. This showed on the island, when he plotted with Sebastian to kill old Gonzalo, who loved Prospero and stood in his way of taking over Naples.
In exile, Prospero changed, he was forced to examine the situation and find the resources in himself and his environment in order to survive. He taught Miranda, and Caliban the monster, but always controlled them. Ariel, his spirit helper, might be seen as his deputy, but Prospero gave the orders, checked progress and examined the results of every activity with discussion and consultation. He took charge of an alien world and managed it so as to reach the desired outcomes. ...Show more