My Big Question in Oedipus Rex

So, after much deliberation, I have what I believe is a very nice big question.

Is it within human nature to truly forgive?

In Oedipus Rex, Kreon shows that he is able to truly forgive Oedipus for calling him a traitor after he finds out that Oedipus was the true killer of King Laius. He finds it in his heart to take care of Oedipus's daughters after Oedipus exhiles himself from Thebes. Because Oedipus was able to learn humility, Kreon was able to forgive him because Oedipus was able to see the errors of his ways and his pride. Kreon is an excellent example of how man is willing and able to forgive.