They [the Greeks] had become an essentially secular people. - Thomas Cahill

No longer did philosophers aspire to the deep spiritual insights and broad moral vision of Socrates, Plato, and Aristotle. They divided into conflicting schools and wandered through the Greco-Roman world as permanent immigrants, picking up tutoring jobs as they could. ...the upshot was a debased intellectual climate, fragmented and agnostic.

As... Greek philosophy split into scores of yip-yapping schools, the Greeks became more and more puzzled. They had lost their way philosophically—and the Romans, who were just aping them, had nothing original to propose by way of saving them all from their dilemmas.

...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."