Who wrote De Senectute, which featured Cato the Elder as the main speaker?

De Senectute, or "On Old Age," is a philosophical work authored by Cicero. In this dialogue, Cato the Elder serves as the main speaker, discussing the nature of aging and its implications for life and philosophy. Cicero uses Cato’s perspective to convey wisdom about how to approach the later stages of life, emphasizing that old age brings its own set of advantages, such as experience and the capacity for reflection.

Cicero's work is part of his broader efforts to engage with Greek philosophical thought while integrating Roman values and concerns, making it a significant contribution to both philosophy and literature. This alignment of speaker and subject matter showcases Cicero's ability to blend personal reflection with broader philosophical discourse, making his arguments poignant and relevant.

The other authors listed have their own significant works, but they do not relate to "De Senectute" in the same way that Cicero does. Seneca is known for his writings on ethics and Stoicism, Virgil is famed for his epic poetry, and Plato’s works largely revolve around his philosophical dialogues and theories, none of which feature Cato the Elder or this specific discussion on aging.