“And it is of power and the man that I shall sing. By power I mean official, political power—what we know in Latin as imperium—the power of life and death, as vested by the state in an individual.”

Tiro references and defines the word that furnishes the novel’s title. Imperium is not influence or wealth but the legal authority to kill, vested by the state in one person. Setting this definition at the front of the book establishes the stakes: Every step Cicero takes is measured against how close it brings him to this specific kind of power. The connection to The Corrupting Price of Ambition is implied by the definition itself—a man who wants the power of life and death cannot pursue it cleanly.

“He was not, unlike Metellus or Hortensius, from one of the great aristocratic families, with generations of political favors to draw on at election time. He had no mighty army to back up his candidacy, as did Pompey or Caesar. He did not have Crassus’s vast fortune to smooth his path. All he had was his voice—and by sheer effort of will he turned it into the most famous voice in the world.”

Tiro lays out the advantages possessed by Cicero’s competitors in a single inventory: familial, military, and financial power. Cicero has none of these, only his voice, which the passage’s final clause establishes is enough. This introduces the theme of Eloquence as Political Weapon, alerting the reader to the fact that words alone will have to do the work that bloodlines and legions do for everyone else.

“Only three things count in oratory. Delivery, delivery, and again: delivery.”

Molon’s lesson, attributed to Demosthenes, is the creed Cicero builds his career on. The line strips eloquence of its romance: Persuasion is not about having the best argument but about how the argument lands on the ear. Throughout the book, Cicero will spend nights memorizing speeches and rehearsing gestures, and this is the rule that justifies the labor.

“I ceased henceforth from considering what the world was likely to hear about me: from that day I took care that I should be seen personally every day. I lived in the public eye. I frequented the Forum. Neither my doorkeeper nor sleep prevented anyone from getting in to see me.”

This passage exemplifies how Robert Harris weaves Cicero’s own words into the novel. Cicero here looks back on his snub at Puteoli, when Hortensius’s party guests laughed at the young senator returning from Sicily. The humiliation produces a method: never again rely on reputation to do the work of presence. Harris places this quote immediately after Tiro’s assessment of the incident as a turning point for Cicero, allowing it to serve as character development: In context, the passage shows ambition hardening into routine.

“The fellow gives corruption a bad name.”

Cicero’s verdict on Verres takes the form of a joke that simultaneously speaks to the Roman political context. Calling Verres an embarrassment to corruption implies a normal scale of theft that Cicero accepts as the cost of provincial government, with Verres simply too greedy to fit in. The line marks the moment Cicero begins to see Verres as a useful target: a criminal whose excess makes prosecution a possible avenue of political advancement.

“Sometimes, if you find yourself stuck in politics, the thing to do is start a fight—start a fight, even if you do not know how you are going to win it, because it is only when a fight is on, and everything is in motion, that you can hope to see your way through.”

Cicero offers this maxim to his small council after Verres presses on with Sthenius’s prosecution. Tiro presents the line as something like a working philosophy, and the novel later shows Cicero applying it to Verres, to Catilina, and to the bargain with the aristocrats—all fights he picks to find his footing.

“I doubt whether many slaves, once they hear of this, will rise against Rome in the future. Would you, for example?”

Crassus has just explained the logistics of crucifying 6,000 prisoners along the Appian Way at intervals of 117 paces. He turns to Tiro, who is enslaved, and asks the question with a smile before offering to buy him. The moment binds state terror to casual social violence: The same man who arranges mass execution as policy can treat Tiro, whom he has just tacitly threatened and will soon attempt to purchase, with apparent friendliness. The scene is central to the book’s depiction of The Republic’s Slow Surrender to Strongmen.

“We are witnessing the beginning of the end of the republic, Tiro, remember my words!”

Cicero says this in the street after watching Pompey and Crassus, the two consuls, raise each other’s hands before 20,000 spectators. The setting matters: a spectacle of unity between rival generals that demonstrates how demagogues weaponize public opinion to attain their own goals. Though Cicero’s prediction is prescient, he himself will prove a key player in the Republic’s demise.

“If you want power, there is a time when you have to seize it. This is my time.”

Cicero says this on the rooftop the night he announces his decision to prosecute Verres. The phrasing is unusually direct for him—no qualification, no joke. Quintus has just listed all the reasons the prosecution could destroy his career, and Cicero has heard them and chosen the risk anyway. The line marks the moment when he stops relying on others for patronage and determines to act on his ambition.

“[I]f ever […] you should question why good men forsake philosophy to seek power in the real world, promise me in return that you will always remember what you witnessed in the Stone Quarries of Syracuse.”

Cicero and Lucius have just climbed out of the prison where Verres’s victims rotted. Lucius, Cicero’s philosopher cousin, has asked Cicero to swear that he will never preside over such cruelty if he ever holds imperium. Cicero’s counter implicitly justifies his ambitions as the only way to prevent such atrocities. The quarries thus become the moral standard against which Cicero’s compromises will be measured.

“Every time a blow landed, he said, ‘I am a Roman citizen.’”

A witness at the Verres trial, Numitorius here describes Gavius’s flogging and crucifixion at Messana. Cicero’s prosecution hinges on forcing such testimony into the courtroom record; he repeats it several times himself to hammer the injustice home. The repetition prioritizes the “delivery” that Molon’s training prioritized and itself demonstrated.

“The trouble with Lucius […] is that he thinks politics is a fight for justice. Politics is a profession.”

Lucius has just walked out of the room over Cicero’s deal with Pompey to accept relatively minimal damages from Verres. Cicero says this after he’s gone. The two sentences condense the tension between the characters: Lucius believes that the trial was about Sicily, and Cicero believes it was about Cicero.

“Words, words, words. Is there no end to the tricks you can make them perform? But, as with all men, your great strength is also your weakness, Marcus, and I am sorry for you, absolutely I am, because soon you will not be able to tell your tricks from the truth. And then you will be lost.”

Lucius says this as he leaves the room over Cicero’s defense of Fonteius. He dies a few pages later. The accusation is the moral counterweight to everything the book celebrates about Cicero’s gift: The same voice that won the Verres trial can argue any side, including the wrong one. Lucius’s prediction—that Cicero will lose the ability to tell truth from falsehood—foreshadows the novel’s second half, which sees Cicero applying himself to increasingly disreputable causes.

“I do not propose to die leaving one ounce of talent unspent, or one mile of energy left in my legs. And it is your destiny, my dear fellow, to walk the road with me.”

Tiro has just asked whether he might stay in Arpinum and manage the family farm. Cicero refuses him with affection and flattery, but also absolutely. The phrasing turns Tiro’s wish for a quiet life into a kind of betrayal of Cicero’s own ambition. The passage also exemplifies how Cicero uses charm to manipulate the people closest to him.

“Politics? Boring? Politics is history on the wing!”

Cicero says this in private to Tiro, complaining about Pomponia’s habit of calling politics dull. The exclamation point and metaphor demonstrate his belief that his daily work is the most interesting thing in the world. It explains, in one line, why Cicero keeps choosing the consular route even when retirement and philosophy are both available: He cannot accept that anything else is as alive as this.

“[A] horrible fate for a patriotic Roman, which you might do well to remember.”

Crassus has come to offer Cicero support in his bid for the consulship in exchange for dividing the command against the pirates between Crassus and Pompey. When Cicero refuses, Crassus leaves with a parting threat. The reference is to Tiberius Gracchus, a tribune murdered by senators because his populist policies threatened both constitutional precedent and the aristocratic class. Cicero catches the allusion and immediately sends Tiro to the Annals; that he turns the threat into a counter-strategy highlights not only his political acumen but also the recklessness of his chosen path, which has life-or-death stakes.

“‘They are like two scorpions, circling each other […] Neither can win outright, yet each can kill the other.’

‘Then how will victory ever be achieved?’

[…] ‘By the one which strikes the other by surprise.’”

Cicero is explaining to Tiro how the standoff between Pompey and Crassus must finally break. However, the simile also describes the political logic Cicero himself will use: the Gracchus tactic, the night spying mission, and the denunciation in the Senate all rely on surprise. The moment becomes a working theory of how power changes hands when two equal forces are deadlocked.

“I am a new man. I seek the consulship. This is Rome.”

These three sentences appear near the beginning of Quintus’s Election Handbook, which advises Cicero to repeat them to himself every morning. The passage compresses Cicero’s whole situation: outsider birth, specific goal, hostile arena. The handbook treats politics as a craft that can be drilled, with maxims to memorize and rules to obey. The line returns when Cicero decides to defend Catilina—proof that the mantra works as both motivation and excuse.

“I would defend the blackest devil in hell if he was in need of an advocate. That is our system of law.”

Cicero is telling Quintus that he will defend Catilina, the man who tortured Cicero’s own relative Gratidianus to death. He justifies the decision in terms of his responsibility to the Roman legal system, but the subtext of the scene is Cicero’s reluctance to run against Catilina for consul: Cicero is defending Catilina not (or, at least, not only) because justice requires it but because the consular calendar requires it.

“If it is gratitude you want, get a dog.”

Cicero says this when Quintus complains about Pompey’s silence during the consular campaign. Pompey is at the eastern edge of the Black Sea receiving homage from 12 kings and does not respond to Cicero’s requests for support. The line is comedic but also resigned, as Cicero has given up on the idea that political alliance produces loyalty. It belongs to a recurring pattern in the book: Cicero diagnosing his own situation with a sharp joke and then proceeding regardless.

“You are more my second brother than my slave, Tiro, and have been ever since we sat and learned philosophy together in Athens all those years ago.”

Cicero says this on the night Tiro is about to hide behind a fabric in Crassus’s house and risk torture or death. The promise of freedom is real and unconditional, given before the mission and not as payment for it, though its appeal to Tiro’s emotions is meant to sway him toward acceptance. That Tiro records the words verbatim 60 years later and notes that he can still recall them exactly demonstrates the intensity of the bond, which will keep Tiro at his post for another two and a half decades and result in the biography itself.

“This is the problem with your demagoguery, Cicero—you may think you can control the mob, but the mob will always end up devouring you. Did you seriously believe you could beat men like Crassus and Catilina when it came to a public auction of principles?”

Terentia has just heard the contents of the bribery dossier and is telling her husband what to do with it. The passage critiques the premise of Cicero’s career: He has built his support on the people, but the people are for sale, and so is he.

“Between two extremes there is always a third way.”

Cicero says this on the rooftop the night of his consular victory, defending the bargain he has just made with the aristocrats. Quintus has pointed out that the deal will cost him every ally he has—the people, the Pompeians, and eventually the aristocrats themselves. The third-way formulation sounds like statesmanship but is really an evasion: a euphemism for having promised contradictory things to everyone and not yet been caught. Nevertheless, the novel implies that the consulship he has won is already shaped by those compromises.