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Logic Quotes

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Logic Quotes

“Complete knowledge of the nature of an analytic function must also include insight into its behavior for imaginary values of the arguments. Often the latter is indispensable even for a proper appreciation of the behavior of the function for real arguments. It is therefore essential that the original determination of the function concept be broadened to a domain of magnitudes which includes both the real and the imaginary quantities, on an equal footing, under the single designation complex numbers.”

RealValuesNumbersEqualEssentialsBehaviorConceptsDeterminationArgumentLogicFunctionOriginalsComplexesAppreciationInsightCertaintyUncertaintyReasoningLatterQuantityImaginaryIndispensableDomainMagnitudeOntologyAnalyticsDesignationComplex Numbers
Author:Carl Friedrich Gauss
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“Rhetoric is the counterpart of logic; since both are conversant with subjects of such a nature as it is the business of all to have a certain knowledge of, and which belong to no distinct science. Wherefore all men in some way participate of both; since all, to a certain extent, attempt, as well to sift, as to maintain an argument; as well to defend themselves, as to impeach.”

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Book:Aristotle's Treatise on Rhetoric
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“Water is two parts hydrogen and one part oxygen. What if someone says, “Well, that’s not how I choose to think about water.”? All we can do is appeal to scientific values. And if he doesn’t share those values, the conversation is over. If someone doesn’t value evidence, what evidence are you going to provide to prove they should value it? If someone doesn’t value logic, what logical argument could you provide to show the importance of logic?”

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Author:Sam Harris
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“You can win as long as you chose your battles. You can win more arguments then you might think as a writer, even though you legally have no recourse, and your script can get muddied and altered in any way possible. You can use reason, logic, and passion to argue persuasively for a case in your favor. So what I've learned is to just basically not buckle - not be belligerent, not be angry, not throw fits, but just not buckle.”

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Author:Shane Black
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“An argument in apologetics, when actually used in dialogue, is an extension of the arguer. The arguer's tone, sincerity, care, concern, listening, and respect matter as much as his or her logic - probably more. The world was won for Christ not by arguments but by sanctity: "What you are speaks so loud, I can hardly hear what you say.”

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Book:Pocket Handbook of Christian Apologetics
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“The argument goes something like this: "I refuse to prove that I exist," says God, "for proof denies faith, and without faith I am nothing.”

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Book:The Hitchhiker's Guide to the Galaxy: The Trilogy of Five
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“Ordinarily logic is divided into the examination of ideas, judgments, arguments, and methods. The two latter are generally reduced to judgments, that is, arguments are reduced to apodictic judgments that such and such conclusions follow from such and such premises, and method is reduced to judgments that prescribe the procedure that should be followed in the search for truth.”

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Author:Andre-Marie Ampere
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“There will have to be rigid and iron discipline before we achieve anything great and enduring, and that discipline will not come by mere academic argument and appeal to reason and logic. Discipline is learnt in the school of adversity.”

ReasonSchoolAchieveDisciplineArgumentLogicAdversityMereEndureAppealsIronAcademicReason And Logic
Book:Glorious Thoughts of Gandhi: Being a Treasury of about Ten Thousand Valuable and Inspiring Thougths of Mahatma Gandhi, Classified Under Four Hundred Subjects
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“Why do people always assume that volume will succeed when logic won't?”

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Book:The Vampire Diaries: The Return & The Hunters Collection: The Return: Nightfall, The Return: Shadow Souls, The Return: Midnight, The Hunters: Phantom, The Hunters: Moonsong, The Hunters: Destiny Rising
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“Our whole educational system, from the elementary schools to the universities, is increasingly turning out people who have never heard enough conflicting arguments to develop the skills and discipline required to produce a coherent analysis, based on logic and evidence. The implications of having so many people so incapable of confronting opposing arguments with anything besides ad hominem responses reach far.”

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Author:Thomas Sowell
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“It must be granted that in every syllogism, considered as an argument to prove the conclusion, there is a petitio principii. When we say, All men are mortal Socrates is a man therefore Socrates is mortal; it is unanswerably urged by the adversaries of the syllogistic theory, that the proposition, Socrates is mortal.”

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Book:A System of Logic, Ratiocinative and Inductive: Being a Connected View of the Principles of Evidence, and the Methods of Scientific Investigation
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“Let the Spirit be lacking, and there may be wisdom of words, but not the wisdom of God; the powers of oratory, but not the power of God; the demonstration of argument and the logic of the schools, but not the demonstration of the Holy Spirit, the all-convincing logic of His lightning flash, such as convinced Saul before the Damascus gate. When the Spirit was outpoured the disciples were all filled with power from on high, the most unlettered tongue could silence gainsayers, and with its new fire burn its way through obstacles as flames fanned by mighty winds sweep through forests.”

WayMaySchoolSpiritSilenceFireWindWords Of WisdomHolyArgumentLogicFilledObstaclesTongueConvincedForestsFlamesHoly SpiritGatesFlashLightningLackingDiscipleConvincingDemonstrationPower Of GodOratoryMighty Wind
Author:Arthur Tappan Pierson
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“So how do theists respond to arguments like this? [The Argument from Evil] They say there is a reason for evil, but it is a mystery. Well, let me tell you this: I'm actually one hundred feet tall even though I only appear to be six feet tall. You ask me for proof of this. I have a simple answer: it's a mystery. Just accept my word for it on faith. And that's just the logic theists use in their discussions of evil.”

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Author:Quentin Smith
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“All the political seers and sorcerers seem to be agreed that the coming Presidential campaign will be full of bitterness, and that most of it will be caused by religion. I count Prohibition as a part of religion, for it has surely become so in the United States. The Prohibitionists, seeing all their other arguments destroyed by the logic of events, have fallen back upon the mystical doctrine that God is somehow on their side, and that opposing them thus takes on the character of blasphemy.”

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Author:H. L. Mencken
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“They [the mathematicians of the Enlightenment] defined their terms vaguely and used their methods loosely, and the logic of their arguments was made to fit the dictates of their intuition. In short, they broke all the laws of rigor and of mathematical decorum. The veritable orgy which followed the introduction of the infinitesimals... was but a natural reaction. Intuition had too long been held imprisoned by the severe rigor of the Greeks. Now it broke loose, and there were no Euclids to keep its romantic flight in check.”

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Author:Tobias Dantzig
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“It is often argued that religion is valuable because it makes men good, but even if this were true it would not be a proof that religion is true. That would be an extension of pragmatism beyond endurance. Santa Claus makes children good in precisely the same way, and yet no one would argue seriously that the fact proves his existence. The defense of religion is full of such logical imbecilities. The theologians, taking one with another, are adept logicians, but every now and then they have to resort to sophistries so obvious that their whole case takes on an air of the ridiculous. Even the most logical religion starts out with patently false assumptions. It is often argued in support of this or that one that men are so devoted to it that they are willing to die for it. That, of course, is as silly as the Santa Claus proof. Other men are just as devoted to manifestly false religions, and just as willing to die for them. Every theologian spends a large part of his time and energy trying to prove that religions for which multitudes of honest men have fought and died are false, wicked, and against God.”

HumorTruthDeathEnergyExistenceSupportSacrificeAtheismMoralityArgumentLogicValueProofRidiculousDevotionWickedEnduranceMartyrSantaSanta ClausAssumptionsPragmatismFalseImbecilitySophistryTheologiansLogicians
Book:Minority Report
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“Seduction is manipulation, manipulation is half of argument, and therefore many of us shy from it. But seduction offers more than just consensual sex. It can bring you consensus. Even Aristotle, that logical old soul, believed in the curative powers of seduction. Logic alone will rarely get people to do anything. They have to desire the act. You may not like seduction’s manipulative aspects; still, it beats fighting, which is what we usually mistake for an argument.”

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Book:Thank You for Arguing: What Aristotle, Lincoln, and Homer Simpson Can Teach Us About the Art of Persuasion
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“There's a wonderful, perhaps apocryphal story that people tell about Daniel Patrick Moynihan, the brilliant, prickly, and iconoclastic late senator from New York. Apparently, Moynihan was in a heated argument with one of his colleagues over an issue, and the other senator, sensing he was on the losing side of the argument, blurted out: 'Well, you may disagree with me, Pat, I'm entitled to my own opinion." To which Moynihan frostily replied, "You are entitled to you own opinion, but you are not entitled to you own facts.”

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Book:The Audacity of Hope: Thoughts on Reclaiming the American Dream
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“I am a cuddly atheist... I am against creationism being taught in schools because there is empirical evidence that it is a silly notion... I am passionately concerned about the rise in pseudo-science; in beliefs in alternative medicine; in creationism. The idea that somehow it is based on logic, on rational arguments, but it's not. It doesn't stand up to empirical evidence. In the same way in medicine, alternative medicines like homeopathy or new age therapies – reiki healing – a lot of people buy into it and it grates against my rationalist view of the world. There is no evidence for it. It is deceitful. It is insidious. I feel passionately about living in a society with a rationalist view of the world. I will be vocal on issues where religion impacts on people's lives in a way that I don't agree with – if, for instance, in faith schools some of the teaching of religion suggests the children might have homophobic views or views that are intolerant towards other belief systems... I am totally against, for example, bishops in the House of Lords. Why should someone of a particular religious faith have some preferential treatment over anyone else? This notion that the Church of England is the official religion of the country is utterly outmoded now.”

ReasonSchoolAtheismEvidenceArgumentLogicEnglandMedicineDeceitBeliefsBishopsPseudoscienceCreationismHomophobicAlternative MedicineHomeopathyReikiChurch Of EnglandHouse Of LordsReiki HealingEmpiricalFaith Schools
Author:Jim Al-Khalili
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“Well, Humpty Dumpty is one of the keenest arguers I know... he almost had me convinced that I had no valid reason to be sure that I was awake... It took me about three hours, but I finally convinced him that I must be awake, and so he conceded that I had won the argument. And then--." The King did not finish his sentence and stood lost in thought. "And then what?" asked Alice. "And then I woke up!" said the King, a bit sheepishly.”

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Book:Alice in Puzzle-Land
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