Amphion and Zethus fit of madness and became a nightingale. After the deaths of Amphion and Zethus, Laius returned to Thebes and became king. Compare with Castor and Polydeuces (the Dioscuri) of Greece, and with Romulus and Remus of Rome. Plato, "Gorgias", 485e. Amphion and Zethus Amphion () and Zethus (, "Zēthos") were, in ancient Greek mythology, the twin sons of Zeus (or Theobus) by Antiope. They are important characters in one of the two founding myths of the city of Thebes, because they constructed the city's walls. Amphion and Zethus were the sons of Antiope, who fled in shame to Sicyon after
Ab ovo "soup to nuts". Thus "ab ovo" can also be used to mean a complete or entire thing. Ab ovo Ab ovo (Latin: "from the beginning, the origin, the egg") is a reference to one of the twin eggs from which Helen of Troy was born. The eggs were laid by Leda after mating with Zeus disguised as a swan. Had Leda not laid the egg, Helen would not have been born, so Paris could not have eloped with her, so there would have been no Trojan War. The English literary use of the phrase comes from Horace's "Ars Poetica", where