Possible Clues:

• ''The Elder'' of history
• Caesar rival
• A brief time in company of Addison's noble Roman
• Turncoat Roman censor
• “Carthage must be destroyed” speaker
• Censor and tenacious orator originally
• Who wrote 'Wise men learn more from fools than fools from the wise'
• 'Elder' Roman statesman
• 'Carthage must be destroyed' proclaimer
• Stoic politician of ancient Rome