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Logic Quotes

He knew what 'I love you' meant, and he knew it was good, but he didn't understand why it was an exp...

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Cassandra ClareCity of Heavenly Fire

[She wasn't] a logically reasoning woman, but God is good, and hearts may count in heaven as high as...

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Panentheistic doctrine contains all of deism and pandeism except their arbitrary negations.

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Charles HartshorneMan's Vision of God and the Logic of Theism

Some persons fancy that bias and counter-bias are favorable to the extraction of truth–that hot and ...

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Charles Sanders PeirceThe Essential Peirce: Selected Philosophical Writings Volume 1: 1867-1893

The belief that rational and quantifiable disciplines such as science can be used to perfect human s...

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Chris HedgesI Don't Believe in Atheists

I'm very depressed how in this country you can be told "That's offensive" as though those two words ...

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To be against rationalization is not the same as to be opposed to reasoning.

Common sense and a sense of humor are the same thing, moving at different speeds. A sense of humor i...

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When dealing with people, remember you are not dealing with creatures of logic, but creatures of emo...

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When dealing with people, remember you are not dealing with creatures of logic, but with creatures b...

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Dale CarnegieHow to Win Friends and Influence People

Painting is so poetic, while sculpture is more logical and scientific and makes you worry about grav...

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Aesthetics - rather than reason - shapes our thought processes. First comes aesthetics, then logic. ...

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Disputes with men, pertinaciously obstinate in their principles, are, of all others, the most irksom...

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David HumeAn Enquiry Concerning the Principles of Morals

How can we satisfy ourselves without going on in infinitum? And, after all, what satisfaction is the...

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David HumeDialogues Concerning Natural Religion

This meaning-argument is of a very different kind from the arguments I have been speaking about so f...

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This isn't a reasoned response to a configuration of stars, but the heart cannot flourish on logic a...

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Mathematics expresses values that reflect the cosmos, including orderliness, balance, harmony, logic...

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Now, me lord, you know you oughtn’t talk like that at this hour of the morning. Yougot to pardon his...

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Diana GabaldonLord John and the Haunted Soldier

But that's men all over ... Poor dears, they can't help it. They haven't got logical minds.

Now logic is a wonderful thing but it has, as the process of evolution discovered, certain drawbacks...

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There is no point in using the word 'impossible' to describe something that has clearly happened.

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Douglas AdamsDirk Gently's Holistic Detective Agency

It seemed to me,' said Wonko the Sane, 'that any civilization that had so far lost its head as to ne...

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Now it is such a bizarrely improbable coincidence that anything so mind-bogglingly useful could have...

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Douglas AdamsThe Hitchhiker's Guide to the Galaxy

Anything that thinks logically can be fooled by something else that thinks at least as logically as ...

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Douglas AdamsThe Hitchhiker's Trilogy

The idea was fantastically, wildly improbable. But like most fantastically, wildly improbable ideas ...

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Douglas AdamsThe Long Dark Tea-Time of the Soul

A doctor, a logician and a marine biologist had also just arrived, flown in at phenomenal expense fr...

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Douglas AdamsThe Restaurant at the End of the Universe

All opinions are not equal. Some are a very great deal more robust, sophisticated and well supported...

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We loved with a love that was more than love.

In the strange anomaly of my existence, feelings with me had never been of the heart, and my passion...

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A magical universe was so terrifying because it was so irrational. There was no cause and effect any...

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There is science, logic, reason; there is thought verified by experience. And then there is Californ...

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Science attempts to find logic and simplicity in nature. Mathematics attempts to establish order and...

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There is something about poetry beyond prose logic, there is mystery in it, not to be explained but ...

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Logic will never change emotion or perception.

Most of the mistakes in thinking are inadequacies of perception rather than mistakes of logic.

It is not the logical part of thinking that changes emotions but the perceptual part. If we see some...

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Picture of Edward de Bono
Edward de BonoSix Thinking Hats Revised Edition

There may be more danger in prejudices which are apparently founded in logic than in those which are...

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Picture of Edward de Bono
Edward de BonoSix Thinking Hats Revised Edition

World domination is such an ugly phrase. I prefer to call it world optimisation.

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Eliezer YudkowskyHarry Potter and the Methods of Rationality

Logic stays true, wherever you may go,So logic never tells you where you live.

Picture of Eliezer Yudkowsky
Eliezer YudkowskyRationality: From AI to Zombies

I think it’s important to reason from first principles rather than by analogy. The normal way we con...

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The explanations for the things we do in life are many and complex. Supposedly mature adults should ...

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I think a strong claim can be made that the process of scientific discovery may be regarded as a for...

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It is necessary, first of all, to find a correct logical starting point, one which can lead us to a ...

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Ernst CassirerAn Essay on Man: An Introduction to a Philosophy of Human Culture

Not for the first time I find our lives are a shadow, and I am not afraid to say that people who thi...

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It was a good answer that was made by one who when they showed him hanging in a temple a picture of ...

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Histories make men wise; poets, witty; the mathematics, subtle; natural philosophy, deep; moral, gra...

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Francis BaconThe Collected Works of Sir Francis Bacon

It was a good answer that was made by one who when they showed him hanging in a temple a picture of ...

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Histories make men wise; poets, witty; the mathematics, subtle; natural philosophy, deep; moral, gra...

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Francis BaconThe Collected Works of Sir Francis Bacon

It was a good answer that was made by one who when they showed him hanging in a temple a picture of ...

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Histories make men wise; poets, witty; the mathematics, subtle; natural philosophy, deep; moral, gra...

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Picture of Francis Bacon (artist)
Francis Bacon (artist)The Collected Works of Sir Francis Bacon

It was a good answer that was made by one who when they showed him hanging in a temple a picture of ...

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Histories make men wise; poets, witty; the mathematics, subtle; natural philosophy, deep; moral, gra...

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Picture of Francis Bacon (artist)
Francis Bacon (artist)The Collected Works of Sir Francis Bacon

Nobody gets argued all the way into becoming a believer on the sheer basis of logic and reason. That...

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One of the best things to come out of the home computer revolution could be the general and widespre...

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Clinging to any form of conservatism can be dangerous. Become too conservative and you are unprepare...

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It would have been so pointless to kill himself that, even if he had wanted to, the pointlessness wo...

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For those who believe, no explanation is necessary. For those who do not believe, no explanation is ...

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In order that the concept of substance could originate--which is indispensable for logic although in...

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Experience teaches effectually, but brutally. It makes us acquainted with all the effects of an acti...

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But however measurable, there is much more life in music than mathematics or logic ever dreamed of.

A distinguished writer [Siméon Denis Poisson] has thus stated the fundamental definitions of the sci...

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George BooleAn Investigation of the Laws of Thought

It turned out I was pretty good in science. But again, because of the small budget, in science class...

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In philosophy, metaphorical pluralism is the norm. Our most important abstract philosophical concept...

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Picture of George Lakoff
George LakoffPhilosophy in the Flesh: The Embodied Mind and its Challenge to Western Thought

The more I work with the body, keeping my assumptions in a temporary state of reservation, the more ...

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For, after all, how do we know that two and two make four? Or that the force of gravity works? Or th...

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To know and not to know, to be conscious of complete truthfulness while telling carefully constructe...

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If logic and reason, the hard, cold products of the mind, can be relied upon to deliver justice or p...

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Picture of Gerry Spence
Gerry SpenceHow to Argue & Win Every Time: At Home

In short, we would discover, as we should already, that logic is in the eye of the logician. (For in...

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Earlier fundamental work of Whitehead, Russell, Wittgenstein, Carnap, Whorf, etc., as well as my own...

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Thirty years ago, we used to ask: Can a computer simulate all processes of logic? The answer was yes...

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What I'd like to read is a scientific review, by a scientific psychologist--if any exists--of 'A Sci...

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It is often argued that religion is valuable because it makes men good, but even if this were true i...

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There is hardly a better way to avoid discussion than by releasing an argument from the control of t...

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Experience cannot beat logic, and interpretations of observational evidence which are not in line wi...

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Hans-Hermann HoppeThe Economics and Ethics of Private Property: Studies in Political Economy and Philosophy

But still," Ayumi said, "it seems to me that this world has a serious shortage of both logic and kin...

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The philosophers make still another objection: "What you gain in rigour," they say, "you lose in obj...

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Pure analysis puts at our disposal a multitude of procedures whose infallibility it guarantees; it o...

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In the end, he had to admit, he didn't really understand her. He didn't understand women. He didn't ...

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Our knowledge springs from two fundamental sources of our mind; the first is to receive representati...

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It will be seen how there can be the idea of a special science, the *critique of pure reason* as it ...

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I, on the other hand, am a finished product. I absorb electrical energy directly and utilize it with...

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How often people speak of art and science as though they were two entirely different things, with no...

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Which came first, the phoenix or the flame?”"...I think the answer is that a circle has no beginning...

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J. K. RowlingHarry Potter and the Deathly Hallows

...what about the stone, Mr Lovegood? The thing you call the Resurrection Stone?""What of it?""Well,...

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... Desire baffles knowledge and power.

One can ask why the I has to appear in the cogito {Descartes’ argument “I think therefore I am.}, si...

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I believed that it might be pulling these different impressions of itself from my mind and projectin...

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I am a cuddly atheist... I am against creationism being taught in schools because there is empirical...

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You have a visitor, my lord." I frowned, "What?" "That is why I came in here. You have a visitor wai...

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I hate those Socratic dialogues where everything gets drawn out at the pace of an excessively logica...

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Logically, I understand that it wasn't Edward's fault my family fell apart after he left. But when y...

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If we take reason strictly, the perceiving of spiritual beauty and excellence no more belongs to rea...

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It is useless to attempt to reason a man out of a thing he was never reasoned into.

It is better to debate a question without settling it than to settle a question without debating it.

He had a better mind and a more rigorous temperament than me; he thought logically, and then acted o...

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Logic is the science of the justification of conclusions we have reached by natural reasoning. My po...

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J
Julian JaynesThe Origin of Consciousness in the Breakdown of the Bicameral Mind

Mythology was never designed to describe historically verifiable events that actually happened. It w...

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When you kill a man, You steal a life. You steal his wife's right to a husband, Rob his children of ...

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Khaled HosseiniThe Kite Runner

Everything has to come to an end, sometime.

Picture of L. Frank Baum
L. Frank BaumThe Marvelous Land of Oz