Final answer:
Virgil's Aeneid promotes respect for tradition and heritage, reflecting a significant Roman cultural value conveyed through the protagonist Aeneas's commitment to his duties and the preservation of history.
Step-by-step explanation:
One cultural value expressed in Virgil's Aeneid is respect for tradition and heritage. The Aeneid emphasizes the importance of ancestry, pietas (a Roman virtue encompassing duty, and loyalty), and the glorification of Rome's future through the protagonist Aeneas's journey. Aeneas’s adherence to his forefather’s traditions and his reverence for the gods exemplify the Roman value of respecting and preserving their heritage. This cultural value is also reflected in the Roman pursuit of honoring Greek culture through recognition and preservation, as exemplified by Roman emperors who celebrated classical Greece and sought to maintain its historic glory.