The argument: Falls short — not enough was settled
Contents6 premises▾
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Premises
1The verdict on received moralityConclusion
2The doctrine applied to a received creed
3The argument from fallibility
4Answering the utility and temperance pleas
5What persecution actually costs
6Extending the principle beyond the law
Responses
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Conclusion
The verdict on received morality
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Premise details for "The verdict on received morality"
Christian morality is incomplete
Details for "Christian morality is incomplete"
Christian morality, as historically formed by the church, is one-sided and incomplete; secular ethical elements and non-Christian moral insights are needed alongside it.
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No citations. The argument supports this claim through a premise that concludes it, or an axiom.
Source — Based on origin text "I believe that other ethics than any which can be evolved from exclusively Christian sources, must exist side by side with Christian ethics to produce the moral regeneration of mankind". Original claim
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is true
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The doctrine applied to a received creed
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Premise details for "The doctrine applied to a received creed"
Christian morality is incomplete
Details for "Christian morality is incomplete"
Christian morality, as historically formed by the church, is one-sided and incomplete; secular ethical elements and non-Christian moral insights are needed alongside it.
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No citations. The argument supports this claim through a premise that concludes it, or an axiom.
Source — Based on origin text "I believe that other ethics than any which can be evolved from exclusively Christian sources, must exist side by side with Christian ethics to produce the moral regeneration of mankind". Original claim
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is true
if
Discussion keeps truth living
Details for "Discussion keeps truth living"
Even when an opinion is true, it must be freely discussed to be held as a living truth rather than a dead dogma or mere prejudice.
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No citations. The argument supports this claim through a premise that concludes it, or an axiom.
Source — Based on origin text "However unwillingly a person who has a strong opinion may admit the possibility that his opinion may be false, he ought to be moved by the consideration that however true it may be, if it is not fully, frequently, and fearlessly discussed, it will be held as a dead dogma, not a living truth.". Original claim
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is true
and
Debate reveals partial truth
Details for "Debate reveals partial truth"
Many received opinions contain only part of the truth, and opposing opinions often supply the neglected remainder; diversity of opinion is therefore useful to reach fuller truth.
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No citations. The argument supports this claim through a premise that concludes it, or an axiom.
Source — Based on origin text "Popular opinions, on subjects not palpable to sense, are often true, but seldom or never the whole truth.". Original claim
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is true
and
Truth should stay contested
Details for "Truth should stay contested"
When opinions stop being disputed, people stop thinking about them and their truth becomes stale; therefore even true doctrines benefit from being openly contested.
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This claim has no citation and isn't the consequent of any premise.
Source — Based on origin text "Both teachers and learners go to sleep at their post, as soon as there is no enemy in the field.". Original claim
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is true
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The argument from fallibility
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Premise details for "The argument from fallibility"
Discussion keeps truth living
Details for "Discussion keeps truth living"
Even when an opinion is true, it must be freely discussed to be held as a living truth rather than a dead dogma or mere prejudice.
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No citations. The argument supports this claim through a premise that concludes it, or an axiom.
Source — Based on origin text "However unwillingly a person who has a strong opinion may admit the possibility that his opinion may be false, he ought to be moved by the consideration that however true it may be, if it is not fully, frequently, and fearlessly discussed, it will be held as a dead dogma, not a living truth.". Original claim
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is true
if
Suppression assumes infallibility
Details for "Suppression assumes infallibility"
All silencing of discussion presumes infallibility, because no person or authority can claim certainty enough to exclude others from judging an opinion.
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No citations. The argument supports this claim through a premise that concludes it, or an axiom.
Source — Based on origin text "All silencing of discussion is an assumption of infallibility.". Original claim
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Axiom: Logical Principle
is true
and
Judgment needs criticism
Details for "Judgment needs criticism"
Human judgment becomes trustworthy through open criticism, discussion, and experience; without free contradiction and refutation, no rational assurance of being right is possible.
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No citations. The argument supports this claim through a premise that concludes it, or an axiom.
Source — Based on origin text "The whole strength and value, then, of human judgment, depending on the one property, that it can be set right when it is wrong, reliance can be placed on it only when the means of setting it right are kept constantly at hand.". Original claim
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Axiom: Background Assumption
is true
and
Truth needs open testing
Details for "Truth needs open testing"
The beliefs with the strongest warrant are those that remain open to the whole world’s challenge; if challenge fails, they attain the best certainty fallible beings can have.
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No citations. The argument supports this claim through a premise that concludes it, or an axiom.
Source — Based on origin text "The beliefs which we have most warrant for, have no safeguard to rest on, but a standing invitation to the whole world to prove them unfounded.". Original claim
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Axiom: Background Assumption
is true
and
No exception for certainty
Details for "No exception for certainty"
Permitting free discussion only for doubtful matters while forbidding scrutiny of supposedly certain doctrines still assumes that one’s own judges of certainty are infallible.
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This claim has no citation and isn't the consequent of any premise.
Source — Based on origin text "it is not the feeling sure of a doctrine (be it what it may) which I call an assumption of infallibility. It is the undertaking to decide that question _for others_, without allowing them to hear what can be said on the contrary side.". Original claim
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is true
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Answering the utility and temperance pleas
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Debate reveals partial truth
Details for "Debate reveals partial truth"
Many received opinions contain only part of the truth, and opposing opinions often supply the neglected remainder; diversity of opinion is therefore useful to reach fuller truth.
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No citations. The argument supports this claim through a premise that concludes it, or an axiom.
Source — Based on origin text "Popular opinions, on subjects not palpable to sense, are often true, but seldom or never the whole truth.". Original claim
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is true
if
Utility depends on truth
Details for "Utility depends on truth"
The usefulness of an opinion is itself disputable, and truth is part of utility; therefore discussion cannot fairly protect utility while barring debate over truth.
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No citations. The argument supports this claim through a premise that concludes it, or an axiom.
Source — Based on origin text "The usefulness of an opinion is itself matter of opinion: as disputable, as open to discussion, and requiring discussion as much, as the opinion itself.". Original claim
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Axiom: Stipulation
is true
and
Temperate speech is not enough
Details for "Temperate speech is not enough"
The free expression of opinion should not be restricted by vague demands of temperance, because unfairness and intemperance are judged asymmetrically and cannot be policed consistently by law.
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This claim has no citation and isn't the consequent of any premise.
Source — Based on origin text "With regard to what is commonly meant by intemperate discussion, namely invective, sarcasm, personality, and the like, the denunciation of these weapons would deserve more sympathy if it were ever proposed to interdict them equally to both sides". Original claim
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is true
and
Dissent sustains mental life
Details for "Dissent sustains mental life"
Open dissent keeps intellects courageous and active, while social intolerance produces conformity, timidity, and suppression of genuine thought.
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No citations. The argument supports this claim through a premise that concludes it, or an axiom.
Source — Based on origin text "The greatest harm done is to those who are not heretics, and whose whole mental development is cramped, and their reason cowed, by the fear of heresy.". Original claim
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is true
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What persecution actually costs
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Premise details for "What persecution actually costs"
Dissent sustains mental life
Details for "Dissent sustains mental life"
Open dissent keeps intellects courageous and active, while social intolerance produces conformity, timidity, and suppression of genuine thought.
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No citations. The argument supports this claim through a premise that concludes it, or an axiom.
Source — Based on origin text "The greatest harm done is to those who are not heretics, and whose whole mental development is cramped, and their reason cowed, by the fear of heresy.". Original claim
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is true
if
History condemns persecution
Details for "History condemns persecution"
The deaths of Socrates and Jesus, and Marcus Aurelius’s persecution of Christianity, show that sincere and respectable people can persecute profound truth in error.
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This claim has no citation and isn't the consequent of any premise.
Source — Based on origin text "Mankind can hardly be too often reminded that there was once a man named Socrates, between whom and the legal authorities and public opinion of his time, there took place a memorable collision.". Original claim
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is true
and
Persecution can suppress truth
Details for "Persecution can suppress truth"
Persecution often succeeds in suppressing truth for long periods, and only eventual rediscovery, not any inherent immunity, lets truth prevail in the long run.
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This claim has no citation and isn't the consequent of any premise.
Source — Based on origin text "It is a piece of idle sentimentality that truth, merely as truth, has any inherent power denied to error, of prevailing against the dungeon and the stake.". Original claim
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is true
and
Social stigma persecutes opinion
Details for "Social stigma persecutes opinion"
Modern societies still persecute opinions through legal penalties and social stigma, which can deter expression as effectively as imprisonment for those dependent on public approval.
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No citations. The argument supports this claim through a premise that concludes it, or an axiom.
Source — Based on origin text "In respect to all persons but those whose pecuniary circumstances make them independent of the good will of other people, opinion, on this subject, is as efficacious as law; men might as well be imprisoned, as excluded from the means of earning their bread.". Original claim
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is true
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Extending the principle beyond the law
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Social stigma persecutes opinion
Details for "Social stigma persecutes opinion"
Modern societies still persecute opinions through legal penalties and social stigma, which can deter expression as effectively as imprisonment for those dependent on public approval.
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No citations. The argument supports this claim through a premise that concludes it, or an axiom.
Source — Based on origin text "In respect to all persons but those whose pecuniary circumstances make them independent of the good will of other people, opinion, on this subject, is as efficacious as law; men might as well be imprisoned, as excluded from the means of earning their bread.". Original claim
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is true
if
Press liberty resists tyranny
Details for "Press liberty resists tyranny"
Liberty of the press serves as a security against corrupt or tyrannical government, and governments should not prescribe opinions or determine what doctrines people may hear.
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This claim has no citation and isn't the consequent of any premise.
Source — Based on origin text "The time, it is to be hoped, is gone by, when any defence would be necessary of the "liberty of the press" as one of the securities against corrupt or tyrannical government.". Original claim
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is true
and
Majority may not silence one
Details for "Majority may not silence one"
Mankind is not justified in silencing a lone dissenter even if all others share the opposite opinion; the power to silence opinion is illegitimate.
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No citations. The argument supports this claim through a premise that concludes it, or an axiom.
Source — Based on origin text "If all mankind minus one, were of one opinion, and only one person were of the contrary opinion, mankind would be no more justified in silencing that one person, than he, if he had the power, would be justified in silencing mankind.". Original claim
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Axiom: Background Assumption
is true
and
Silencing robs mankind
Details for "Silencing robs mankind"
Suppressing an opinion harms the human race because it prevents exchange of error for truth when the opinion is right and prevents clearer truth through collision with error when it is wrong.
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This claim has no citation and isn't the consequent of any premise.
Source — Based on origin text "But the peculiar evil of silencing the expression of an opinion is, that it is robbing the human race; posterity as well as the existing generation; those who dissent from the opinion, still more than those who hold it.". Original claim
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is true
and
Suppression assumes infallibility
Details for "Suppression assumes infallibility"
All silencing of discussion presumes infallibility, because no person or authority can claim certainty enough to exclude others from judging an opinion.
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No citations. The argument supports this claim through a premise that concludes it, or an axiom.
Source — Based on origin text "All silencing of discussion is an assumption of infallibility.". Original claim
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Axiom: Logical Principle
is true
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About this source
This argument is a Proposit showcase: a formal reconstruction of a canonical work by John Stuart Mill. The original text is that author’s; the analysis below it is ours.
About: On Liberty
On Liberty (1859) is John Stuart Mill's defense of individual freedom against both state power and social conformity. It advances the "harm principle": that power may rightly be used over a member of society, against their will, only to prevent harm to others. The excerpt here is Chapter II, "Of the Liberty of Thought and Discussion," where Mill argues that silencing any opinion presumes our own infallibility, and that even a true belief, left uncontested, hardens into dead dogma.
Original summary for this showcase, informed by public sources including Wikipedia.
What Proposit adds is the structure: the work’s reasoning restated as explicit claims and premises, with each inference laid out so it can be examined, cited and disputed on its own terms. Readers can respond to any individual premise rather than to the work as a whole.
This argument was published by the Proposit staff as a way to share the Proposit representation of famous historical arguments and documents.Think this misrepresents the original? Tell us.
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About the author
John Stuart Mill
John Stuart Mill (1806–1873) was an English philosopher, political economist, and member of Parliament — among the most influential liberal thinkers of the nineteenth century. Rigorously schooled by his father in Jeremy Bentham's utilitarianism, he became both its leading exponent and a searching critic. He is best known for his defense of individual freedom and as an early advocate of women's rights. His major works include On Liberty, Utilitarianism, and The Subjection of Women.
Original summary for this showcase, informed by public sources including Wikipedia.
On Liberty (1859) is John Stuart Mill's defense of individual freedom against both state power and social conformity. It advances the "harm principle": that power may rightly be used over a member of society, against their will, only to prevent harm to others. The excerpt here is Chapter II, "Of the Liberty of Thought and Discussion," where Mill argues that silencing any opinion presumes our own infallibility, and that even a true belief, left uncontested, hardens into dead dogma.
Original summary for this showcase, informed by public sources including Wikipedia.
J. S. Mill, On Liberty, London, U.K.: John W. Parker and Son, 1859.16,711 words · 17 traced passagesThe text this argument was built from. Open it to read it, step through the passages its premises and claims trace back to, or find a phrase in it.