Prospero"s power is partly due to his power, and partly to his language. Magus- figure of deep learning and knowledge. A knowledge that is hidden and is possible to be acquired by study rather than by birth. A warning about the kind of knowledge that you might gain. He sells his soul and as he is dragged to hell he tries to renounce the magic but finds himself incapable of letting go. Prospero goes to great lengths to tell us that this knowledge is good, that sycorax was bad but his is good. Magic is not all bad, but there"s a question mark, how far did you go to get it. The ability to renounce as something he can do. Everyone who lands on the island wants to be the king of it. Gonzalo page act 1 scene 2 line 47, gonzalo"s utopia mirrors the essays of montaigne.