Roman laws tended to be long and complex — one of Rome's most enduring legacies to the world is cumbersome… — Adrian Keith Goldsworthy

Although he paid attention to the effectiveness of the Roman military system, Polybius believed that Rome's success rested far more on its political system. For him the Republic's constitution, which was carefully balanced to prevent any one individual or section of society from gaining overwhelming control, granted Rome freedom from the frequent revolution and civil strife that had plagued most Greek city-states. Internally stable, the Roman Republic was able to devote itself to waging war on a scale and with a relentlessness unmatched by any rival. It is doubtful that any other contemporary state could have survived the catastrophic losses and devastation inflicted by Hannibal, and still gone on to win the war.

Lucius Cornelius Sulla was a man of striking appearance, with exceptionally fair skin, piercing grey eyes and reddish hair. In later life his appearance was marred by a skin condition that speckled his face with red patches. (An obscure piece of military law from several centuries later also claims that he had only one testicle, and that his achievements make it clear that such a defect was no bar to becoming a successful soldier.) Sulla could be very charming, winning over soldier and senator alike, but many aristocrats remained deeply uncertain of him. In spite of his late entry into public life he had been reasonably successful, and demonstrated his military skill on repeated occasions. His consulship came when he was fifty, which was unusually old for a first term, and in the preceding decade it had taken two attempts for him to win the praetorship. Many senators probably found it hard to forget the poverty of his youth and the decay of his family. It is common for those who flourish under any system to feel that the failure of others is deserved. Sulla had been poor and revelled in the company of actors and musicians, professions considered extremely disreputable. Such behaviour was bad enough in his youth, and far worse for a senator and magistrate, but Sulla remained loyal to his old friends throughout his life. He was a heavy drinker, enjoyed feasting and was widely believed to be very active sexually, taking both men and women as lovers. For much of his life he publicly associated with the actor Metrobius, who specialised in playing female roles on stage, and the pair were believed to be having an affair.