WorkJeremy Bentham

Essay on Logic

Bentham redefines logic — not the syllogism but the art of directing the mind toward an end, the classifying method behind his codes.

by Jeremy Bentham258 passages held

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

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Overview

Logic, for most of its history, meant the study of valid inference — the syllogism and its rules. Bentham's Essay on Logic sets that aside almost at once and redefines the subject as something far wider: the art of directing the mind in whatever it undertakes, the discipline of thinking well toward an end rather than the mere mechanics of deduction. He separates a logic of the understanding, concerned with getting at truth, from a logic of the will, concerned with acting to some purpose, and treats method, classification and definition — including the branching, divide-in-two procedure he used to map whole fields of knowledge — as the real business of the logician. It is logic bent, like everything Bentham wrote, toward use: a set of tools for ordering thought and language so that error and confusion have fewer places to hide. He composed it around 1813–16, in the same burst as his essays on language and ontology, and it shared their fate, printed only in the posthumous Works. As a contribution to formal logic it is a dead end and was passed over as one. Its interest is as a window on Bentham's own mind — the classifying, dividing, defining machine behind the codes and the calculus — and on a conception of logic as an art of practical reasoning rather than a science of proof.

Key concepts

How does Bentham redefine logic?

He sets aside the traditional view that logic means the study of valid inference, the syllogism and its rules, and redefines it far more widely as the art of directing the mind in whatever it undertakes. Logic becomes the discipline of thinking well toward an end, not the mere mechanics of deduction. It is logic bent toward use, a set of tools for ordering thought rather than a science of proof.

What is the logic of the understanding versus the will?

Bentham separates two branches. The logic of the understanding is concerned with getting at truth, with thinking correctly about what is the case. The logic of the will is concerned with acting to some purpose, with thinking well toward a chosen end. The division reflects his whole outlook: reasoning is not only about knowing but about doing, and a complete logic must serve both.

What is the divide-in-two method?

It is the branching, bipartite procedure Bentham used to map whole fields of knowledge, dividing a subject in two, then dividing each part again, to lay out its structure exhaustively. Together with classification and definition it forms what he treats as the real business of the logician. This classifying, dividing, defining method is the engine behind his codes and his felicific calculus alike.

Why is the essay valued if it failed as formal logic?

As a contribution to formal logic it is a dead end and was passed over as one. Its interest is different: it is a window on Bentham's own mind, the classifying, dividing, defining machine behind everything else he built. Written around 1813 to 1816 with his essays on language and ontology and printed only after his death, it reveals the method that underlies his whole system.

Themes of the book

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

Logic Bent Toward Use

Logic is not the study of the syllogism but the art of directing the mind in whatever it undertakes; and thinking toward truth is a different business from thinking toward action.

For most of its history logic meant valid inference, the syllogism and its rules. Bentham sets that aside almost at once and redefines the subject far more widely: the art of directing the mind toward an end, the discipline of thinking well rather than the mere mechanics of deduction. He separates a logic of the understanding, concerned with getting at truth, from a logic of the will, concerned with acting to some purpose. Like everything he wrote, it is logic bent toward use, a set of tools for ordering thought so error has fewer places to hide, an art of practical reasoning rather than a science of proof.

  • methodology
  • logic
  • classification
  • language

The Machine Behind the Codes

Method, classification and definition, not inference, are the real business of the logician; the branching, divide-in-two procedure that mapped whole fields of knowledge is the engine beneath Bentham's codes.

The heart of the essay is not the syllogism but the practical instruments of ordered thought: method, classification, and definition, including the bipartite branching procedure, dividing each thing in two, that Bentham used to map whole fields of knowledge. As a contribution to formal logic the work is a dead end and was passed over as one. Its real interest is as a window on his own mind, the classifying, dividing, defining machine behind the codes and the felicific calculus. To understand how he built entire legal systems on purpose, you look here, at the method he applied to everything else he wrote.

  • methodology
  • taxonomy
  • abstraction
  • definition

Within this work

passages held
258
distinct concepts
467
by passages held, corpus-wide
#113

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: governance with legislation.
Concept co-occurrence, strongest first 8 concepts, joined by 16 pairings. 75 shared passages in all. 84 weaker pairings reach beyond these concepts and are not drawn.
ConceptPaired conceptShared passages
governancelegislation9
accountabilitygovernance7
governancerationality7
governancetransparency7
accountabilitytransparency6
codificationgovernance6
incentiveslegislation6
accountabilitylegislation4
governanceincentives4
rationalitytransparency4
accountabilityincentives3
codificationtransparency3
legislationrationality3
accountabilitycodification2
codificationrationality2
colonialismgovernance2

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

    Bentham's satirical catalogue of the fallacies used to resist reform, edited from his manuscripts and published in English in 1824 after Dumont's French version of 1816; the most quotable and least systematic of his major works.

    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 you are here 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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