In analyzing the quote "who is he by voice" to "I would do nothing that my Lord dislikes" from "Oedipus Rex," a compelling thesis statement could be: "In this passage, the interplay of identity and authority underscores the tragic irony of Oedipus's quest for truth, revealing how his desperate search for knowledge ultimately leads to his downfall due to the inherent conflicts between self-identity and predetermined fate."
I chose this theme because it encapsulates the central tensions within the play—namely, the struggle between individual agency and the inescapable forces of destiny. Oedipus's determination to uncover the truth about his origins and the murder of King Laius reflects a profound human desire for knowledge and self-discovery. However, it also highlights the tragic implications of that quest; Oedipus’s identity is intricately tied to the prophecies that foretell his doom. This theme is critical to understanding the tragic dimensions of the character and the broader commentary on fate and free will that Sophocles explores throughout the work.