The events in Oedipus the King, written by Sophocles, show an underlying relationship of man 's free will existing within the cosmic order or fate which the Greeks believed guided the universe in a harmonious purpose. Man was free to choose and was ultimately held responsible for his own actions. Both the concept of fate and free will played an it regal part in Oedipus ' destruction. Although he was a victim of fate, he was not controlled by it. Oedipus was destined from birth to someday marry his mother and to murder his father. This prophecy, as warned by the oracle of Apollo at Delphi was unconditional and inevitably would come to pass, no matter what he may have done to avoid it. His past actions were determined by fate, but what he did in Thebes, he did so of his own will. From the beginning of this tragedy, Oedipus took many actions leading to his own downfall. Oedipus could have waited for the plague to end, but out of compassion for his suffering people, he had Creon go to Delphi. When he learned of Apollo 's word, he could have calmly investigated the murder of the former King Laius, but in his hastiness, he passionately curses the murderer, and in so, unknowingly curses himself. "Upon the murderer I invoke this curse- whether he is one man and all unknown, or one of many- may he wear out his life in misery or doom! If with my knowledge he lives at my hearth, I pray that I myself may feel my curse. " (pg. 438; lines