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Proof Quotes

“I have never seen what to me seemed an atom of proof that there is a future life. And yet-I am inclined to expect one.”

ReligiousPositive AtheismProofAtomsFuture Life
Book:MARK TWAIN - The Man Behind the Humor: Complete Autobiographical Books & Biographies: The Complete Travel Books, Essays, Autobiographical Writings, Speeches & Letters, With Author’s Biography; The Innocents Abroad, Roughing It, Life on the Mississippi, What Is Man, Christian Science…
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“Accordingly, France Had Voltaire, and his school of negative thinkers, and England (or rather Scotland) had the profoundest negative thinker on record, David Hume: a man, the peculiarities of whose mind qualified him to detect failure of proof, and want of logical consistency, at a depth which French skeptics, with their comparatively feeble powers of analysis and abstractions stop far short of, and which German subtlety alone could thoroughly appreciate, or hope to rival.”

MenWantMindSchoolReligiousRecordsNegativeAppreciateEnglandDepthProofFranceAnalysisLogicalThinkerConsistencyScotlandAbstractionRivalsQualifiedSkepticSubtletyHume
Book:Utilitarianism and On Liberty: Including 'Essay on Bentham' and Selections from the Writings of Jeremy Bentham and John Austin
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“A man's reputation is not in his own keeping, but lies at the mercy of the profligacy of others. Calumny requires no proof. The throwing out [of] malicious imputations against any character leaves a stain, which no after-refutation can wipe out. To create an unfavorable impression, it is not necessary that certain things should be true, but that they have been said. The imagination is of so delicate a texture that even words wound it.”

MenShouldHas BeensSaidCharacterLyingCertainImaginationMercyProofWoundsImpressionReputationBeing TrueThrowingDelicateWipeTextureStainsMaliciousCalumnyRefutation
Book:Characteristics: in the manner of Rochefoucault's Maxims [by W. Hazlitt].
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“True it is, that he who has taken off his affection from the goods of this world has already sold all, and has made himself poor, so far as depends upon himself; but the fruit and the proof of this spiritual poverty are, patiently to endure the loss of worldly goods, and without any regret, when it pleases our heavenly Father that we should be despoiled of them.”

ShouldRealSpiritualSufferingFatherLossPovertyRegretPleaseEndureProofInevitableHeavenlyGoodsWorldlyHeavenly Father
Author:John Calvin
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“In the life of the human spirit, words are action, much more so than many of us realize who live in countries where freedom of expression is taken for granted. The leaders of totalitarian nations understand this very well. The proof is that words are precisely the action for which dissidents in those countries are being persecuted.”

HumansWellsCountryActionSpiritNationsRealizingLibertyLeaderTakenExpressionProofGrantedHuman SpiritFreedom Of ExpressionPersecutedTaken For GrantedDissidents
Book:Jimmy Carter
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“Government ought to be as much open to improvement as anything which appertains to man, instead of which it has been monopolized from age to age, by the most ignorant and vicious of the human race. Need we any other proof of their wretched management, than the excess of debts and taxes with which every nation groans, and the quarrels into which they have precipitated the world?"”

MenWorldNeedsHumansHas BeensGovernmentAgeNationsRaceLibertyOughtTaxesManagementDebtLibertarianProofImprovementIgnorantHuman RaceExcessLibertarianismViciousWretchedQuarrels
Book:Thomas Paine: Collected Writings: Common Sense / The American Crisis / Rights of: (Library of America #76)
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“With respect to the words "general welfare," I have always regarded them as qualified by the detail of powers connected with them. To take them in a literal and unlimited sense would be a metamorphosis of the Constitution into a character which there is a host of proofs was not contemplated by its creators.”

CharacterGovernmentWould BeLibertyConstitutionDetailsCreatorConnectedLibertarianProofWelfareHostFoundersFederal GovernmentUnlimitedQualifiedFreedom And LibertyLiteralFreedom LibertyProperty RightsLimited GovernmentMetamorphosisFederalistLimiting GovernmentConstitution Of The United StatesFederalist PapersLimited FreedomUs ConstitutionGeneral WelfareLimiting FreedomConstitutional GovernmentStates RightsTyranny Founding FathersPower Government
Author:James Madison
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“The most convincing proof of the conversion of heat into living force [vis viva] has been derived from my experiments with the electro-magnetic engine, a machine composed of magnets and bars of iron set in motion by an electrical battery. I have proved by actual experiment that, in exact proportion to the force with which this machine works, heat is abstracted from the electrical battery. You see, therefore, that living force may be converted into heat, and that heat may be converted into living force, or its equivalent attraction through space.”

LifeMayHas BeensScienceForceSpaceMachinesAttractionProofConversionExperimentsBarsHeatProportionIronEnginesConvincingElectricalMagnetBatteriesMagneticViva
Author:James Prescott Joule
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“In point of fact, no conclusive disproof of a theory can ever be produced; for it is always possible to say that the experimental results are not reliable or that the discrepancies which are asserted to exist between the experimental results and the theory are only apparent and that they will disappear with the advance of our understanding. If you insist on strict proof (or strict disproof) in the empirical sciences, you will never benefit from experience, and never learn from it how wrong you are.”

IfsFactsScienceUnderstandingResultsTheoryBenefitsDisappearProofExperimentsStrictDiscrepancies
Author:Karl Popper
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“If the proof starts from axioms, distinguishes several cases, and takes thirteen lines in the text book ... it may give the youngsters the impression that mathematics consists in proving the most obvious things in the least obvious way.”

IfsWayGivingMayBookLinesCasesProveMathematicsObviousProofImpressionThirteenAxiomsYoungstersObvious Things
Book:Mathematical discovery: on understanding, learning, and teaching problem solving
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“The proof given by Wright, that non-adaptive differentiation will occur in small populations owing to "drift," or the chance fixation of some new mutation or recombination, is one of the most important results of mathematical analysis applied to the facts of neo-mendelism. It gives accident as well as adaptation a place in evolution, and at one stroke explains many facts which puzzled earlier selectionists, notably the much greater degree of divergence shown by island than mainland forms, by forms in isolated lakes than in continuous river-systems.”

GivingWellsImportantFactsFormScienceGivenChanceResultsGreaterEvolutionDegreesRiversMathematicsPopulationAccidentsProofMathematicalAnalysisIslandsLakesIsolatedStrokesAdaptationOwingPuzzledMutationDifferentiationFixationAdaptiveDivergenceMathematical Analysis
Author:Julian Huxley
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“I definitely know that-that love is the most powerful thing of all and I remember thinking that-God, I'm about to make myself cry but, I remember thinking that when 9/11 happened because those last phone calls were about-the last thing knowingly, that I'm going to say on this earth is 'I love you.' What's more powerful than that? What's more proof than that? Beyond fear, beyond death.”

ThinkingKnowsEarthLastsRememberLove IsPowerfulWiseHappenedLove YouCryPhonesWittyProofMost PowerfulPhone Calls
Author:J. K. Rowling
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“Your late purchase of an estate in the colony of Cayenne, with a view to emancipating the slaves on it, is a generous and noble proof of your humanity. Would to God a like spirit would diffuse itself generally into the minds of the people of this country; but I despair of seeing it.”

PeopleMindCountrySpiritHumanityViewsSeeingDespairLateSlaverySlaveNobleProofGenerousEstatesColony
Book:Writings: Being His Correspondence, Addresses, Messages, and Other Papers, Official and Private, Selected and Published from the Original Manuscripts
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“Historical refutation as the definitive refutation.- In former times, one sought to prove that there is no God - today one indicates how the belief that there is a God arose and how this belief acquired its weight and importance: a counter-proof that there is no God thereby becomes superfluous.- When in former times one had refuted the 'proofs of the existence of God' put forward, there always remained the doubt whether better proofs might not be adduced than those just refuted: in those days atheists did not know how to make a clean sweep.”

KnowsMightTodayBeliefExistenceChristianityKnow HowDoubtAtheismProveWeightImportanceCleanHistoricalAtheistProofFormerThere Is No GodSuperfluousExistence Of GodRefutation
Author:Friedrich Nietzsche
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