Knowledge is usually a source of strength, but how does it turn out to be a weakness in the title character of Christopher Marlowe's play Doctor...

You haven't asked a question, but I am assuming you are
looking for reaction to this statement.

Doctor Faustus
achieved supreme wisdom through his deal with the devil. Possession of great knowledge
would normally be perceived as being a strength, and certainly this was the expectation
that Dr. Faustus had in mind when he struck his agreement with Lucifer. Through the
play, Dr. Faustus uses his incredible powers to conjure individuals and events that
amaze those around him, but that also challenge the morality of his
actions.

Unrepentant, Faustus continues to use his
incredible powers to explore history and the world, compounding his misuse of his powers
by adding to the number of incidents in which he ignores opportunities to use his
knowledge for good. In the end, the actions allowed by the super-natural knowledge of
Doctor Faustus condemn him to the weakness of being powerlessness to save himself from
eternal damnation.