Final answer:
The given literary excerpts center on tragic self-inflicted deaths resulting from misunderstandings or a desire to maintain honor, as seen in narratives such as Ovid's 'Pyramus and Thisbe' and Shakespeare's 'Romeo and Juliet'.
Step-by-step explanation:
The excerpts provided are from tragic narratives where main characters die due to a misunderstanding or a tragic occurrence. In Ovid's "Pyramus and Thisbe," Pyramus mistakenly believes Thisbe has been killed by a lion and kills himself. Thisbe, discovering the dead Pyramus, then takes her own life. Similarly, in Shakespeare's Romeo and Juliet, Romeo kills himself believing Juliet to be dead, and upon waking, Juliet kills herself after seeing Romeo dead. Livy's Ab Urbe Condita presents the sui_cide of Lucretia, who takes her life after being violated despite her innocence to maintain her honor.
These narratives showcase a common theme of death by their own hand, often in response to love, honor, or other overwhelming emotions. They emphasize the tragic nature of events that unfold due to miscommunication or poor timing, and the dramatic, often irreversible reactions of the characters involved.