Hamartia is the tragic flaw that brings about the downfall of the tragic hero in Greek tragedy. Hamartia is also defined as the error in judgment that keeps the tragic hero from seeing the consequences of his or her actions.
So, men of our age, we're to be lectured, are we? -- schooled by a boy his age? (813-814)
As per these lines above, what is Creon's hamartia?