Reason quotes

Politics: A Treatise on Government, Book III, Chapter XVI, William Ellis translation; represented through the 1912 Dent witness / Project Gutenberg #6762. In comparing rule by a person with rule by law, Aristotle says that passion can affect even the best rulers and concludes that law is reason without desire.

Thomas Hobbes, De Corpore / Elements of Philosophy, Part I, Chapter I, section 6, represented in The English Works of Thomas Hobbes, Project Gutenberg #73877. 'The end of knowledge is power' is immediately developed through the use of theorems for construction and action; it remains Hobbes's seventeenth-century account of philosophy's utility.

Common Sense (1776), Introduction. The represented wording is verified in Project Gutenberg #147 and the validated scan-backed Wikisource 1776 sixth-edition transcription; Paine follows his warning that custom can make an error look right by observing that time often changes opinion where argument initially does not.

Areopagitica; excerpt from Milton’s comparison between killing a person and destroying a good book.

Pensées; Pascal contrasts forms of knowing associated with the heart and with discursive reason.

The Moral Sayings of Publius Syrus, maxim 8, in Darius Lyman’s 1856 English rendering; maxim order can vary across editions.

Cranford, Project Gutenberg #394. Martha says the line during a comic but affectionate refusal to leave Miss Matty after financial trouble; it is character dialogue, not Gaskell’s definition of reason.

The Power of Truth, opening chapter, Project Gutenberg #56020; Jordan describes the speech of a person committed to truthfulness.

“A Scandal in Bohemia,” The Adventures of Sherlock Holmes (1891), Project Gutenberg #1661. Holmes immediately warns that premature theorizing leads people to twist facts to suit theories; it is fictional detective dialogue.

A Treatise of Human Nature, Book II, Part III, Section III, “Of the Influencing Motives of the Will,” Project Gutenberg #4705. The frozen catalog retains the opening clause “Reason is, and ought only to be, the slave of the passions,” from a longer sentence. It remains Hume’s historical philosophical thesis rather than contemporary empirical psychology.

Elsie Venner, represented by Project Gutenberg #2696 and corroborated by Gutenberg’s Holmes quotation index. The sentence belongs to nineteenth-century literary and medical-philosophical discourse; it is not current psychiatric guidance, diagnosis or a clinically validated rule.

An Enquiry Concerning Human Understanding, Section X, ‘Of Miracles,’ Part I, paragraph 87 in the represented Selby-Bigge text, Project Gutenberg #9662. ‘A wise man, therefore, proportions his belief to the evidence’ follows Hume's discussion of varying degrees of assurance from experience. It is eighteenth-century epistemological argument and preserves the connective ‘therefore’; it is not a complete modern statistical or scientific decision rule.

On Liberty, Chapter III, in Mill’s discussion of individuality and self-directed choice.

The Descent of Man, and Selection in Relation to Sex, Introduction, represented by Project Gutenberg #2300. Darwin writes that 'ignorance more frequently begets confidence than does knowledge' while rejecting confident claims that human origins could never be solved by science. The frozen quotation capitalizes the clause as a standalone sentence although it appears after a colon in the witness; it remains a historical scientific argument, not a universal quantitative law about confidence.

How We Think (1910), Chapter VIII, “Judgment: The Interpretation of Facts,” section 1, printed page 106, Project Gutenberg #37423. Dewey says the thinker must choose among candidate meanings for a perplexing situation and therefore accepts risk; the prudent thinker selects warily and remains answerable to later confirmation or frustration. This is part of Dewey’s historical educational/logical account of reflective judgment, not a modern decision-science finding.

Arrowsmith, represented by Project Gutenberg #70875. The sentence is Martin Arrowsmith’s internal question during a conflict over public-health claims and scientific precision; it is fictional moral-scientific reflection, not medical advice.

Thomas Jefferson's First Inaugural Address, March 4, 1801, reviewed against the public-domain Wikisource transcription. The error-of-opinion sentence follows Jefferson's distinction between differences of opinion and differences of principle during an appeal for republican political tolerance; it is historical political rhetoric rather than present-day legal doctrine.

The Hound of the Baskervilles, Chapter III, “The Problem,” Project Gutenberg #2852. Sherlock Holmes says that the world is full of obvious things nobody observes after inferring from Watson’s clean clothes and boots that he spent the rainy day indoors, then asks Watson to infer where Holmes himself has been. It remains fictional detective dialogue illustrating Holmes’s observational method rather than a universal scientific rule.

Great Expectations (1861), global Chapter XL / Volume III Chapter I in the Chapman & Hall three-volume first book edition. Mr. Jaggers tells Pip “Take nothing on its looks; take everything on evidence. There’s no better rule” while insisting that he has stayed to the strict line of fact about Pip’s benefactor. Verified against the scan-backed Wikisource Volume III Chapter I transcription and cross-checked with Project Gutenberg #1400. This remains fictional legal dialogue and character method rather than a modern legal or scientific standard.

“Earth Is Short,” Poems: First Series (1890), Project Gutenberg #12242. The poem proceeds into questions about heaven and God; its religious questions remain questions rather than verified metaphysical claims.

How We Think (1910), Chapter VIII, “Judgment: The Interpretation of Facts,” section 1, printed page 107, Project Gutenberg #37423. Dewey identifies a formed judgment as a decision that closes the issue at hand and may help establish a method for analogous later cases. The statement belongs to his early-twentieth-century theory of reflective judgment rather than current clinical, neuroscientific or experimentally settled cognitive science.

The Woman in White, Third Epoch, ‘The Story Continued by Walter Hartright,’ section II, Project Gutenberg #583. Walter tells Marian ‘The best men are not consistent in good—why should the worst men be consistent in evil?’ while they assess Count Fosco after Marian reports his warning. It remains fictional moral reasoning about a particular antagonist rather than an empirical rule about human behavior.

Memorial and Remonstrance against Religious Assessments, represented by Founders Online / National Archives. Madison wrote against a proposed Virginia assessment supporting teachers of Christianity. The sentence is historical religious-liberty argument, not current legal advice.

A Fragment on Government, Preface (1776). Bentham introduces the 'greatest happiness of the greatest number' formulation as a fundamental axiom while arguing for criticism and reform of established law. This remains eighteenth-century utilitarian legal/political philosophy rather than a settled universal ethical or policy metric.

A Vindication of the Rights of Woman; Wollstonecraft explicitly connects independence of character with the exercise of understanding.

Common Sense (1776), Introduction. The represented opening sentence is verified in Project Gutenberg #147 and the validated scan-backed Wikisource transcription; Paine argues that familiarity can make a wrong practice appear right before public argument unsettles the custom.

The Sign of the Four, Chapter VI, ‘Sherlock Holmes Gives a Demonstration,’ Project Gutenberg #2097. Holmes tells Watson that after eliminating impossible entry routes, ‘whatever remains, however improbable, must be the truth,’ then applies the precept to the locked-room investigation and the hole in the roof. It is fictional detective reasoning in a specific evidential setup, not a universal rule that any improbable remaining hypothesis is automatically true without sound premises or exhaustive elimination.

Philosophiæ Naturalis Principia Mathematica, General Scholium, added to the second edition in 1713; represented by the 1846 Andrew Motte English translation on Wikisource. “I frame no hypotheses” is kept inside Newton’s specific discussion of gravity and experimental philosophy rather than treated as a blanket prohibition on hypotheses in modern science.

Human, All-Too-Human, Part I, aphorism 515, “From Experience”; Helen Zimmern translation.

Nicomachean Ethics, Book II, Chapter VI; the public-domain English translation defines virtue through deliberate choice and the relative mean.

The Christian Religion, as Profess'd by a Daughter of the Church of England (1705), opening section, first-edition Google Books scan, around p. 6 before the p. 7 heading represented in the scan’s contents. The first edition uses period spelling/capitalization (“Women shou’d use their Reason … wou’d”), while the frozen catalog record modernizes those forms. Astell’s argument is explicitly Christian and concerns women’s rational agency in religion; it is not a modern empirical finding.

Ada Lovelace, Note G to her 1843 translation of Luigi Menabrea’s “Sketch of the Analytical Engine Invented by Charles Babbage.” The claim concerns the proposed Analytical Engine in its historical design context and is not generalized into a factual limit on modern AI systems.

When William Came, represented by Project Gutenberg #14540 from the 1914 John Lane edition. This is the narrator’s satirical aside about Herr von Kwarl; the digestion comparison is literary humor, not medical or psychological advice.

On the Improvement of the Understanding, section 12, Project Gutenberg #1016 in R. H. M. Elwes's public-domain English translation. Spinoza says the terms good and evil are applied relatively while introducing his distinction between ordinary relative goods and the true/highest good sought by the unfinished treatise. It remains translation-mediated seventeenth-century methodological philosophy rather than a claim that all moral distinctions are meaningless.

The Great Case of Liberty of Conscience (1670), represented by the CELT / University College Cork transcription. Original-period spelling is retained. Penn is making a seventeenth-century Quaker argument against coercion in religion; the record is historical political-religious thought, not current legal advice.

Closing defense argument in the Boston Massacre soldiers’ trial, December 1770, preserved by Founders Online. The line belongs to courtroom advocacy about evidence and due process in a specific criminal proceeding.

Opticks, Query 30, represented from the fourth corrected edition text (1730) by Inters.org. Newton states this as a question within his historical natural-philosophy speculation; it is not presented as a modern account of particle physics or matter–energy conversion.

Final Causes, Book I, Chapter I, “The Principle,” opening sentence, William Affleck translation (1878). The represented public-domain scan prints the sentence on p. 17 after Robert Flint’s prefatory matter. Janet begins by denying that finality functions as an automatic a priori principle like causality; this remains nineteenth-century philosophical teleology rather than current scientific consensus.

The Art of Literature, section “On Thinking for Oneself,” T. Bailey Saunders translation; Project Gutenberg #10714. The library analogy immediately precedes the sentence.

A Letter Concerning Toleration (1689), public-domain text also preserved in The Works of John Locke. Locke immediately distinguishes civil government from religion and argues that persecution should not be disguised as care for souls. His historical position had limits, so this page does not present the letter as a complete modern theory of equal religious freedom.

The Problems of Philosophy, Chapter XV, “The Value of Philosophy,” beginning on printed page 242 / scan leaf 246 and continuing onto printed page 243 / scan leaf 247 in the fully validated 1912 Williams & Norgate Wikisource scan, cross-checked against Project Gutenberg #5827. The “no tincture of philosophy” sentence criticizes inherited common-sense, national and habitual prejudices that have not been examined by deliberate reason; it remains Russell’s philosophical argument rather than a diagnosis of people who do not study philosophy.

Dr. Montessori's Own Handbook. The sentence continues by connecting repeated exercises of attention and intelligence with development; it is Montessori’s pedagogical rationale for the material.