Being the Renaissance or Regeneration drama, author has adopted the main theme as the quest for knowledge. In the story, Prospero is the ruler of Milan, who has all the responsibility of his kingdom and the people, but he was so engrossed in his books that he completely overlooked his duties. Prospero got defocused from his responsibilities because of gaining knowledge from his books. He was so desperate to be perfect in his learning that he completely forgot that he is a king. That was the time when his brother Antonio took advantage of his negligence. Antonio along with Alonso (king of Naples) and his brother Sebastian dethroned Prospero and took the charge of Milan.
Prospero lost his power and kingdom just because his love for learning and gaining knowledge. He is the appropriate example to prove that knowledge is good and beneficial only if it is utilized in the right direction. However, in reference to The Tempest and Prospero, the knowledge and power are negatively related as in the quest of knowledge, and Prospero lost his power (Kwangsok 539-561). On the other hand, Caliban, the son of the dead witch, got the power to curse Prospero when Caliban attained some knowledge of words. Caliban was a monster on the island who did not know how to speak. Prospero tried to make him learn many things, but the monster did not understand and learnt only few words to curse Prospero (Pesta 273-285). This also proves that if knowledge is gained for wrong purposes it could prove hazardous.