I read this tragedy years ago, and granted I was much younger, I never made the realization that "that every step we take forward on what we think is the road of progress may really be a step toward a foreordained rendezvous with disaster”. Often in retrospect one may see truth in this somber statement, luckily that is not always the case. I learned the origin of the riddle (what has four legs..), I did not know that it originated from Sophocles.

I agree that Oedipus the King should be preserved for future generations. The story is chilling and hopefully will continue to teach its audience a thing or two about running from fate. 

In your research of this topic, did you happen to discover whether or not Freud suffered Oedipus cycle himself?