Oedipus the King, was written by Sophocles between C.A.496-406B.C. In this play, Oedipus is a great example of Sophocles' belief that fate will control a man's life no matter how much free will exists. Oedipus is a man of unflagging determination and perseverance, but one who must learn through the working out of a terrible prophecy that there are forces beyond any man's conceptualization or control. Oedipus' actions were determined before his birth, yet Oedipus' actions are entirely determined by the Gods who control him completely. In the beginning of this tragedy, Oedipus took many actions leading to his own...
his eyes was the result of Oedipus' free will and his tragic fate came about because every sin must be punished.

Sophocles feels that a person has no control over the course of his life. No matter how much free will Oedipus had in controlling his life, fate had already taken control. Therefore, fate is proved to be inevitable. Oedipus is one play that is held together by the fact that fate is more powerful than anyone's free will. Fate is the one true evil-- everything that happens is somehow meant to be, and free will cannot change it.