Hubris is a Greek term used  to refer to excessive pride.  It is usually used
                    in reference to a hero in a tragedy.  Often the hero's flaw, or hamartia , is
                    hubris, or overconfidence in himself. This is the flaw that brings about the
                    downfall of  Achilles and Oedipus.  Both of these men suffer from such
                    pride that they actually mock the gods and fate, believing that they are too
                    mighty for such things.