... the turns of the screw that Sophocles administered throughout the play [Oedipus Tyrannos] must have been received with sharp pain... because these cocky, princely, Oedipal Greeks were being made to feel acutely the limitations of human society—in which no political leader, no matter how gifted or courageous, can remain a savior forever, in which every man must come to know that he is no hero but essentially a flawed and luckless figure and that "the pains we inflict upon ourselves hurt most of all."

Ch.IV The Politician and the Playwright: How to Rule - Sailing the Wine-Dark Sea: Why the Greeks Matter (2003)