WorkJeremy Bentham

The Book of Fallacies

A field guide to the debating tricks used to block reform — danger, delay, deference to ancestors — named and dismantled as the bad faith they serve.

by Jeremy Bentham363 passages held

  • English, the original language, and your language
First published
(published posthumously)
Original language
English

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Overview

Every reform Bentham wanted was met in Parliament by the same handful of arguments: that the change was dangerous, that the time was not ripe, that the ancestors had known better, that no one had complained before. The Book of Fallacies is his field guide to those arguments, sorted and named as the tricks they are. He divides them into fallacies of authority (defer to ancestors, to great names), of danger (raise the alarm of anarchy), of delay (the plea that the moment is never ripe), and of confusion (bury the question in words) — dozens of moves whose only function, he argues, is to shield a sinister interest from a case it cannot answer on the merits. The book carries a satirical edge missing from most of his writing; reviewing it in 1825, Sydney Smith boiled its argument down into a mock parliamentary speech that strung every fallacy into one absurd oration. Like his other major works of the period it reached print through an editor rather than his own hand: Étienne Dumont had published a French version, the Traité des sophismes politiques, in 1816, and Peregrine Bingham edited an English edition from Bentham's manuscripts in 1824. What Bentham built as a weapon for law reform reads now as an early anatomy of political bad faith, and its categories still describe how a debate is lost on purpose.

Key concepts

What is a political fallacy, for Bentham?

Not a mere error in logic but an argument whose real function is to block a reform without meeting it on the merits. Bentham catalogues the stock moves used in debate, defer to ancestors, cry anarchy, plead delay, confuse the terms, and shows that each works by distraction rather than reason. A fallacy, on his account, is a trick that shields an interest, dressed up to look like an argument.

What are Bentham's four classes of fallacy?

Fallacies of authority, which tell you to defer to ancestors or great names; of danger, which raise the alarm that change invites anarchy; of delay, which plead that the moment is never ripe; and of confusion, which bury the real question in words. The four sort dozens of particular moves, and together they map the standard ways a case for reform is deflected rather than answered.

What does Bentham mean by a sinister interest?

A private interest that stands to lose from a reform and cannot defend itself openly, so it works through fallacies instead. For Bentham the fallacies are not honest confusions but instruments of such interests, deployed to protect an advantage a straight argument would expose. Identifying the interest behind an argument is, on his view, often the quickest way to understand why the argument is being made.

Why is The Book of Fallacies considered satirical?

Because it carries a mocking edge rare in Bentham, treating the arguments it dissects with open contempt as tricks rather than errors. Sydney Smith distilled it into a mock parliamentary speech that strung every fallacy into one absurd oration, and that squib spread the point further than the treatise itself. The tone makes the book his most quotable and least systematic major work.

How did the book reach English readers?

Like his other major works of the period, it came into English at second hand. Étienne Dumont published a French version, the Traité des sophismes politiques, in 1816, and an English edition drawn from Bentham's manuscripts followed in 1824. What he built as a weapon for law reform survives now as an early anatomy of political bad faith, its categories still describing how debates are lost on purpose.

Themes of the book

What this book returns to, gathered into themes and ordered by how much of the text each one occupies.

A taxonomy of bad faith

Are the stock arguments against reform reasons at all, or moves? Bentham sorts them into named types, exposing the recurring tricks that stand in for a case.

Every reform Bentham wanted met the same handful of arguments, so he catalogued them as the tricks they are. He divides them into fallacies of authority, defer to ancestors and great names; of danger, raise the alarm of anarchy; of delay, the plea that the moment is never ripe; and of confusion, bury the question in words. Naming a move is half of defeating it: once you can label the argument someone is making, you can see that it answers nothing. The book reads now as an early anatomy of political bad faith, and its categories still describe how a debate is lost on purpose.

  • logic
  • classification
  • taxonomy
  • rhetoric
  • methodology
  • epistemology

Arguments that shield a sinister interest

Why do the same bad arguments recur across every reform debate? Because, Bentham says, their real function is not to reason but to protect an interest a case cannot defend on the merits.

Behind each fallacy, Bentham argues, sits a sinister interest, someone with something to lose from the reform who cannot answer it honestly. The fallacies are not innocent mistakes but instruments: their only function is to shield that interest from a case it cannot meet on the merits. This is what makes the book a weapon rather than a logic textbook. It carries a satirical edge missing from most of his writing; Sydney Smith boiled the argument into a mock parliamentary speech stringing every fallacy into one absurd oration, and the squib carried the point further than the treatise did.

  • utility
  • ethics
  • psychology
  • education
  • fallacies
  • political rhetoric

Within this work

passages held
363
distinct concepts
552
by passages held, corpus-wide
#88

What this book thinks together

Every arc around the wheel is one concept in this book. A ribbon joins two the text reaches for together, and its width is how many of its passages hold both. Strongest: epistemology with logic.
Concept co-occurrence, strongest first 8 concepts, joined by 20 pairings. 191 shared passages in all. 80 weaker pairings reach beyond these concepts and are not drawn.
ConceptPaired conceptShared passages
epistemologylogic21
logicmethodology19
classificationlogic18
educationpedagogy16
logicsemantics16
classificationepistemology12
epistemologymethodology12
epistemologypedagogy12
linguisticslogic9
logicpedagogy8
classificationmethodology7
classificationpedagogy6
methodologypedagogy6
classificationlinguistics5
epistemologylinguistics5
linguisticssemantics5
educationepistemology4
educationmethodology4
classificationsemantics3
educationlogic3

Works held

The author's work in order, this book marked in place. Your-language title first, the original beneath it where the two differ; side chips show which full texts are held.

  1. 1838 A Fragment on Government

    Bentham's first published book, carved out of a larger unfinished attack on Blackstone; the 1776 debut that brought him to the notice of reformers and set the course of everything he wrote after.

    EN
  2. 1838 An Introduction to the Principles of Morals and Legislation

    The theoretical foundation under all of Bentham's legislative projects, printed in 1780 but withheld until 1789; the penal code it was written to introduce was never completed, and the book outgrew the code it served.

    EN
  3. 1838 Essay on the Influence of Time and Place in Matters of Legislation

    An early essay, written about 1782 and left unpublished, testing his science of legislation against the hard case of colonial Bengal; it reached readers first through Dumont's French edition and only later in English.

    EN
  4. 1838 Essay on the Promulgation of Laws and the Reasons Thereof

    Transmitted to print through Dumont like his other early legislative writing, this short piece insists that publishing a law — together with its reasons — is a condition of its authority rather than a favour to the governed.

    EN
  5. 1838 Principles of Penal Law

    One half of the penal–civil pairing at the core of Bentham's science of legislation; assembled and published in French by Étienne Dumont in 1802, and reaching English readers only through later retranslation from the French.

    EN
  6. 1838 Principles of the Civil Code

    The source of Bentham's doctrine that security of expectation outranks the other ends of law, and the civil-law counterpart to his penal theory; published in French by Dumont in 1802 and carried into English only by later retranslation.

    EN
  7. 1839 A Protest Against Law-Taxes

    A short pamphlet provoked by the Irish budget of 1793 — printed that year, published in 1795, extended in 1816 — and one of the political-economy tracts in which Bentham argued that taxing legal proceedings shuts the poor out of the courts.

    EN
  8. 1839 Anarchical Fallacies

    The work in which Bentham's utilitarianism turns to demolish the doctrine of natural, imprescriptible rights; written in the 1790s against the French revolutionary declarations and first published, in French, by Dumont in 1816.

    EN
  9. 1839 Leading Principles of a Constitutional Code for Any State

    A short 1823 statement, published in The Pamphleteer, of the principles behind Bentham's unfinished Constitutional Code; the clearest brief version of the representative democracy his final years argued for.

    EN
  10. 1839 Principles of International Law

    A work his own century treated as utopian: four essays from the late 1780s, printed only after Bentham's death, in which he coined the term "international" and set out an early plan for perpetual peace.

    EN
  11. 1839 Principles of Judicial Procedure with the Outlines of a Procedure Code

    Bentham's theory of how courts should operate, drawn from manuscripts he worked on for over thirty years and published only posthumously; his fullest case against legal technicality and the exclusion of evidence.

    EN
  12. 1839 Tax with Monopoly

    A minor scheme from Bentham's 1794 review of possible taxes, proposing to soften a tax by pairing it with a monopoly; unpublished in his lifetime, like almost all of his political economy.

    EN
  13. 1839 The Book of Fallacies you are here EN
  14. 1840 A Commentary on Mr Humphreys' Real Property Code

    A late sign of Bentham's codifying cause gaining ground: his 1826 Westminster Review response to James Humphreys' proposal to codify English real-property law, welcoming it while pressing it further.

    EN
  15. 1840 A Manual of Political Economy

    Bentham's principal treatise on political economy, written in the 1790s, first printed in the collected Works of 1843, and given an authoritative edition by Werner Stark in the 1950s; the source of his "be quiet" rule for the state.

    EN
  16. 1840 Bentham's Draught for the Organization of Judicial Establishments Compared with the National Assembly

    A rival judicial blueprint Bentham drew up in 1790 against the French Assembly's own reform draft and sent unbidden to Paris; an early mark of his turn toward democracy, and left unfinished.

    EN
  17. 1840 Codification Proposal

    The 1822 pamphlet in which the ageing Bentham offered his services as codifier to any liberal government; it opens his "legislator of the world" years and points toward the unfinished Constitutional Code.

    EN
  18. 1840 Emancipate Your Colonies

    An early argument for shedding colonies that his own age passed over: written in 1793 for the French National Convention, held back while Britain and France were at war, and printed only in 1830.

    EN
  19. 1840 Nomography or the Art of Inditing Laws

    A late unfinished fragment, printed in the posthumous Works, on the craft of drafting legislation — Bentham's catalogue of the faults of legal style and their cures, with an appendix on his own methods.

    EN
  20. 1840 Pannomial Fragments

    The unbuilt goal of Bentham's whole legislative project: fragments, published posthumously, toward the foundations of his Pannomion — the single complete code he projected for decades and never finished.

    EN
  21. 1840 Papers Relative to Codification and Public Instruction

    A collection of Bentham's 1811–15 correspondence with American and Russian authorities, published in 1817; the working papers behind his later Codification Proposal and among the beginnings of the Constitutional Code.

    EN
  22. 1840 Swear Not at All

    Part of Bentham's late assault on the Anglican establishment: an 1817 tract against the swearing of oaths, above all the religious subscription forced on students at Oxford and Cambridge.

    EN
  23. 1841 A Fragment on Ontology

    One of three linked fragments on logic, language and metaphysics that Bentham wrote around 1813–15 and never published; the metaphysical root of his theory of legal fictions and the home of his method of paraphrasis.

    EN
  24. 1841 An Introductory View of the Rationale of Evidence

    A compact case against excluding any relevant testimony — Bentham's own digest of the argument the young J.S. Mill drew out of his manuscripts as the five-volume Rationale of Judicial Evidence (1827).

    EN
  25. 1841 Essay on Language

    Written around 1813–16 with his essays on logic and ontology and unpublished until the posthumous Works; Bentham's attempt at a universal grammar, built on the claim that the sentence, not the word, is the true unit of meaning.

    EN
  26. 1841 Essay on Logic

    One of the linked essays of the mid-1810s, printed only after his death; here Bentham recasts logic as the art of thinking toward a purpose, and it lays bare the classifying method underlying his whole system.

    EN
  27. 1841 Securities Against Misrule Adapted to a Mahommedan State

    Constitutional writings Bentham produced in 1822 for Tripoli, at a Tripolitan reformer's request, adapting his checks on misrule — above all a free press and public opinion — to a Muslim state; printed only after his death.

    EN
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