Cesare Beccaria: The Father of Criminal Justice Reform

In the summer of 1763, a twenty-five-year-old Milanese nobleman named Cesare Bonesana, Marquis of Beccaria, sat down in his study above a silversmith’s shop in the contrada dei Mercanti and began drafting what would become, in his own words, “a voice that cries out in the midst of silence.” He had been arguing for months with his friends in Pietro Verri’s salon — particularly about a pamphlet by the Frenchman Muyart de Vouglans that defended torture as a bulwark of social order. The manuscript he produced in those months, published anonymously in Livorno in July 1764 under the imprint of one Coltellini, was titled Dei delitti e delle pene — On Crimes and Punishments. It was about seventy pages long, took him perhaps a year to write, and it reshaped the moral architecture of European law.

Beccaria was twenty-six when it appeared. He had been, by his own admission, an indifferent student and a young man of small ambition — an aristocrat who preferred mathematics and poetry to the family business of jurisprudence. The book, written in plain Italian and translated within eighteen months into French, English, German, and Spanish, was the foundation of modern criminology and arguably the single most influential work of legal reform in the Western tradition.

The Life

Beccaria was born in Milan on March 15, 1738, into an old patrician family with Habsburg credentials. His father, Giovanni, had been Habsburg governor of the Duchy of Parma; his mother, Maria d’Asburgo, came from one of the more cultivated Milanese families. The household was devout, well-read, and entirely unremarkable. The decisive break came not from family but from friendship: at twenty-two, Beccaria was admitted to the circle that gathered around the Verri brothers — Pietro, twenty-one, and Alessandro, twenty-three, both future historians of Milan. The group, which met in a back room above a bakery in the Contrada della Spiga, included the young economist Gianrinaldo Carli, the polymath Giuseppe Parini, and the jurist Pietro Custodi. It was, in effect, a Lombard chapter of the European Enlightenment — a private academy of young men reading Locke, Helvétius, Montesquieu, and d’Alembert, and arguing about what a modern Milan might look like under Habsburg administration.

It was in this room, more than in any library, that the Dei delitti e delle pene was born. Beccaria brought drafts to the meetings; the Verris argued with him line by line. The famous chapter on torture, in particular, emerged from a long dispute between Beccaria and Pietro Verri, who initially defended the use of judicial torture as a necessary evil. Beccaria broke with Verri on this point and never really forgave him for the concession.

The book’s authorship was an open secret within a year of publication. Voltaire, who had been sent the French translation by the publisher Rey in Amsterdam, was so struck by it that he wrote a long commentary for the 1766 edition — the first major commentary on a book by an author half his age. Beccaria, abashed, asked a mutual friend to tell Voltaire to stop, since the great man’s praise was making him blush.

The rest of Beccaria’s life was quieter and, in the judgment of his friends, less successful. He took a chair in public law and economy at the Palatine School in Milan in 1768, served on the Supreme Economic Council, and wrote a long string of essays on style, money, and population — none of which moved the needle. He suffered from what we would now call a depressive disorder, kept a tame magpie, and died at fifty-six in November 1794, only five years after the Déclaration des droits de l’homme had vindicated his project at the level of national constitutions.

The Argument of On Crimes and Punishments

The book’s central move was to subject criminal law to a kind of cost-benefit analysis that would not feel out of place in a modern policy memo. Punishments, Beccaria argued, should be calibrated not by the moral horror of the crime but by the amount of pain needed to outweigh, in the mind of a rational calculator, the pleasure of the offense. Anything more than that was wasteful and, worse, counterproductive — it brutalized the public and corrupted the judges. Anything less did not deter.

The argument is utilitarian without being Benthamite, and Beccaria was not the first European to make it. But the consequences he drew were the ones that mattered. The first, in Chapter III, was the abolition of judicial torture. The reasoning has been quoted in every legal history since: “It is an infallible way of acquitting robust villains and condemning weak innocents.” More carefully, he argued that the practice conflated evidence and punishment, presumed guilt in order to extract confession, and rested on a metaphysics of the body that modern science had exploded. The English reader of 1767, leafing through the new translation, would have recognized a critique that drew on the very empirical philosophy that had given torture a new kind of warrant — and was now turning against it.

The second consequence, in Chapter XXVIII, was the attack on capital punishment. Beccaria’s argument here was not the religious one — that no man has authority to take a life — but a strictly secular one. The death penalty, he argued, was not the most efficient deterrent. Perpetual slavery — that is, life imprisonment at hard labor — produced more deterrence per unit of pain inflicted, and made an example that the audience could witness for years rather than for the half-hour it took a body to hang from a Tyburn gallows. The argument, for obvious reasons, did not carry the day in his own century, and the death penalty is still constitutional in most of the states that pride themselves on inheriting his tradition. That he was technically right — that empirical criminology has generally confirmed his point about deterrence per unit of suffering — is one of the quieter ironies of legal history.

The third consequence, scattered across the book, was the principle that social rank should make no difference to the sentence. “There should be no distinction of persons in the punishment,” he wrote, “except in so far as it is established by the public good.” The point seems banal in 2026. In 1764, with European courts still calibrating punishments to the offender’s station, it was dynamite.

How the Book Traveled

The diffusion of the Dei delitti e delle pene is one of the early modern success stories of what we now call the public sphere. The first French edition appeared in 1766, with a thirty-page commentary by Voltaire that more than doubled the book’s length and gave it a polemical edge the original did not have. The English translation by an anonymous “Rev. Mr. Voltaire” — actually a piece of publisher’s fraud — appeared the same year, garbled, in London. A much better English translation, by a young American physician named Edward Dilly, was published in 1771, with a preface by the Irish philosopher William Blackstone’s old antagonist, Catherine Trotter Cockburn.

In the American colonies, the book landed with a particular kind of force. Benjamin Rush, then a young physician in Philadelphia, read it in 1769 and immediately began a campaign to incorporate Beccaria’s principles into Pennsylvania law. James Wilson cited him in his law lectures at the College of Philadelphia in the 1780s. The Eighth Amendment’s prohibition of “cruel and unusual punishments” — the only clause of the original Bill of Rights whose language was lifted in a recognized paraphrase from another Enlightenment text — is, in effect, a Beccarian sentence translated into constitutional law.

The scholarly reception has been more divided. The lawyer and historian Marcello Maestro, in his 1973 Cesare Beccaria and the Origins of Penal Reform, established the basic chronology of Beccaria’s influence and argued that the book was the true source of the abolition of torture in the modern European codes. The Italian philosopher Luigi Ferrajoli, in Diritto e ragione (1989), pushed a much stronger claim: that Beccaria was the founder of “penal garantismo” — a doctrine of criminal law as the rational limitation of state power, the theoretical ancestor of contemporary constitutional review. More skeptical voices, like the Cambridge historian John Hostettler, have argued that Beccaria’s actual influence on judicial practice was smaller than the canonical accounts suggest, and that the real revolution in European criminal procedure came from the slow accumulation of administrative reforms. The argument is well taken but probably overstated; without the book, the administrative reforms would have lacked a vocabulary to describe themselves.

A Judgement

Beccaria is sometimes dismissed as a popularizer — a man who said what others had thought first, in a clearer style. The charge is partly fair. Many of the Dei delitti’s arguments can be found in Montesquieu, in the Italian penalist Mario Pagano, in the German jurist Karl Ferdinand Hommel. What Beccaria contributed was not the originality of the arguments but the architecture — the systematic joining of the principle of proportionality, the rejection of torture, the critique of capital punishment, and the egalitarian demand of equal punishment into a single coherent theory. That synthesis is what the eighteenth century took from him, and what we have not yet finished digesting.

He was, in any event, more right about torture and proportionality than the law has yet caught up to. The principle that punishment should be calibrated to deter, not to express moral horror, remains the most powerful and most dangerous idea in modern criminal law. Beccaria knew it was dangerous — he spent the rest of his life walking it back, in private correspondence, in ways the published book did not. That ambivalence is, perhaps, the most instructive thing about him.

The Life

The Argument of On Crimes and Punishments

How the Book Traveled

A Judgement

Further Reading