Marcus Porcius Cato was born in 234 BC in Tusculum, a small town outside Rome, and that outsider origin never entirely left him. He came from a plebeian farming family with no aristocratic pedigree, and rather than leaving that background behind as his career advanced, he wore it as a badge of distinction for the rest of his life.

He spent his youth working the land, an experience that hardened into a lifelong conviction that agriculture was the most honorable pursuit available to a Roman citizen. His talents caught the attention of a Roman noble named Lucius Valerius Flaccus, who recognized what the young farmer from Tusculum was capable of and brought him into the political world of Rome.

From that opening, Cato climbed methodically through the full sequence of Roman public offices, the cursus honorum, holding the positions of quaestor, praetor, consul, and ultimately censor. Along the way he served in the Second Punic War, the brutal, generation-defining conflict with Carthage that tested Rome to its limits. As a young officer he established a reputation for toughness and personal austerity, choosing to share the conditions of ordinary soldiers rather than enjoy the comforts available to men of his rank. He operated during the era shaped by Scipio Africanus, though his relationship with the culture of elite Roman generalship was never particularly warm.

He reached the consulship in 195 BC, one of the two supreme elected offices in the Republic. His governorship of Spain followed, where he suppressed local resistance with considerable force and established himself as a man who enforced Roman authority without hesitation.

The role that defined his public reputation most completely came in 184 BC, when he became censor. The censorship carried responsibility for overseeing public morals and maintaining the citizen registry, and Cato approached it with a severity that unsettled even powerful Romans. He held the authority to strike individuals from the registry for conduct he judged unworthy, and he used it. Wealthy citizens braced themselves during his tenure. He taxed luxury goods heavily, explicitly aiming to discourage the kind of extravagant, Greek-influenced lifestyle he believed was corroding Roman character. In his view, comfort was the enemy of virtue, and Rome was growing dangerously comfortable.

His hostility to Greek cultural influence ran deep and expressed itself in deliberate ways. At a time when educated Romans commonly wrote in Greek, Cato initially refused to do so, insisting on Latin as a matter of principle. He regarded Roman dependence on Greek models as a form of cultural submission.

His commitment to Latin produced works of lasting historical importance. De Agri Cultura, his practical manual on farming, is the oldest complete prose text surviving in Latin. His other major work, Origines, was the first history of Rome composed in the Latin language, though only fragments of it have survived.

The ideas running through everything he wrote and said remained consistent throughout his life: simplicity, discipline, and the primacy of agricultural life were what had made Rome great, and anything pulling Romans away from those values was a threat to be resisted.

In the Senate, his consistency became almost legendary. He had a habit of returning to the same themes regardless of the matter under discussion, and one theme above all others consumed his final years. Carthage, he was convinced, would always represent an existential danger to Rome, no matter how diminished it appeared. He began ending his Senate speeches with the same declaration, whatever the subject had been: Carthago delenda est. Carthage must be destroyed. He said it so often, and with such unwavering insistence, that the phrase became inseparable from his name.

The Third Punic War began in 149 BC. Cato died that same year, of old age, just as the destruction of Carthage he had spent decades advocating was finally getting underway.