Oedipus' Hamartia

I think that Oedipus' hamartia is something that can be both good and bad for a person. I believe his downfall was that he was too curious. He recounts an experience from his childhood to his wife, when a drunken man "accused [him] in his drink of being a bastard." He later asks his parents about it and they are upset he would even mention it to them. Instead of putting the matter to rest, he goes to Pytho and learns about the prophecy that he will kill his father and marry his mother. To be curious is not a bad thing, but in Oedipus' case he should have held back. His curiosity leads him to more and more information that eventually prove too much to handle.
When speaking with Teiresias, Oedipus wants to learn more about the death of king Laius. Teiresias tells him small bits and pieces of the kings murder, but Oedipus wants to know everything. Teiresias is a priest and knows about what Oedipus has done, but it seems he doesn't want to tell Oedipus everything he knows. But Oedipus' curiosity won't let it rest.

Teiresias: "I will not bring this pain upon us both, neither on you nor on myself. Why is it you question me and waste your labour? I will tell you nothing."
Oedipus: "You would provoke a stone! Tell us, you villain, tell us, and do not stand there quietly unmoved and balking at the issue."

Oedipus clearly wants to know more than Teiresias will tell him, even though it would be better if he did not know. His prying for information eventually leads him to the knowledge that he did indeed kill his father on the highway and is now married to his mother. Curiosity killed the cat (and led Oedipus to stab his own eyes out).