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Logic Quotes

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Logic Quotes

“You can't. Do you hear me? You think you've figured something out? You run over here so pleased with yourself because you changed your mind. Now you're certain. You're so... sloppy. You don't know anything. The book, the math, the dates, the writing, all that stuff you decided with your buddies, it's just evidence. It doesn't finish the job. It doesn't prove anything.”

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Author:David Auburn
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“The actual infinite arises in three contexts: first when it is realized in the most complete form, in a fully independent otherworldly being, in Deo, where I call it the Absolute Infinite or simply Absolute; second when it occurs in the contingent, created world; third when the mind grasps it in abstracto as a mathematical magnitude, number or order type.”

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Author:Georg Cantor
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“The facts of nature are what they are, but we can only view them through the spectacles of our mind. Our mind works largely by metaphor and comparison, not always (or often) by relentless logic. When we are caught in conceptual traps, the best exit is often a change in metaphor not because the new guideline will be truer to nature (for neither the old nor the new metaphor lies "out there" in the woods), but because we need a shift to more fruitful perspectives, and metaphor is often the best agent of conceptual transition.”

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Book:Bully for Brontosaurus: Reflections in Natural History
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“"There is one basis of science," says Descartes, "one test and rule of truth, namely, that whatever is clearly and distinctly conceived is true." A profound psychological mistake. It is true only of formal logic, wherein the mind never quits the sphere of its first assumptions to pass out into the sphere of real existences; no sooner does the mind pass from the internal order to the external order, than the necessity of verifying the strict correspondence between the two becomes absolute. The Ideal Test must be supplemented by the Real Test, to suit the new conditions of the problem.”

MindFirstsDoeTwoRealProblemOrderExistenceMistakeConditionsIdealsTestsLogicBasesAbsolutesProfoundQuittingPsychologicalSuitsAssumptionInternalsSpheresFormalStrictNever QuitCorrespondence
Author:George Henry Lewes
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“At one time, many philosophers held that faultless "laws of thought" were somehow inherent, a priori, in the very nature of mind. This belief was twice shaken in the past century; first when Russell and his successors showed how the logic men employ can be defective, and later when Freud and Piaget started to reveal the tortuous ways in which our minds actually develop.”

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Author:Jean Piaget
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“With all due respect, many in the entertainment industry are deep into mind-altering substance abuse, and when one's logic and intellectual calculating powers are replaced with dopey feel-good, fantasy-driven denial, the democratic party serves them well.”

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Author:Ted Nugent
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“It has been a long road from Plato's Meno to the present, but it is perhaps encouraging that most of the progress along that road has been made since the turn of the twentieth century, and a large fraction of it since the midpoint of the century. Thought was still wholly intangible and ineffable until modern formal logic interpreted it as the manipulation of formal tokens. And it seemed still to inhabit mainly the heaven of Platonic ideals, or the equally obscure spaces of the human mind, until computers taught us how symbols could be processed by machines.”

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Author:Allen Newell
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“Religions are not proved, are not demonstrated, are not established, are not overthrown by logic! They are of all the mysteries of nature and the human mind, the most mysterious and most inexplicable; they are of instinct and not of reason.”

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Book:Travels in the East: Including a Journey in the Holy Land
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“Intuition is a combination of insight and imagination that was once attributed to spiritual communication. Mathematicians call it 'fuzzy logic,' drawing conclusions from vague or subjective input. The mind becomes aware without the direct intervention of reasoning. Once you can imagine something you can begin the process of creating it. Executives use intuition to make many product, investment, and hiring decisions, even if they deny it. Success in business may depend on an accurate gut.”

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Book:Thinking In The Future Tense
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“The concept of absolute, hence (or whence) springs, in the moral field, the moral laws or norms, represent, in the field of knowledge, the principle of identity, which is the fundamental law of the thought; norms of logic springs from it, that govern the thought (or mind) in the field of science." ("Le concept de l'absolu, d'où découlent, dans le domaine moral, les lois ou normes morales, constitue, le principe d'identité, qui est la loi fondamentale de la pensée; il en découle les normes logiques qui régissent la pensée dans le domaine de la science.")”

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Author:African Spir
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“The enthronement of Christ over the minds of men is steadily going forward. His kingdom embraces the princes in the realm of mind. It embraces the nations of highest civilization. They are all beneath the cross. It is maintained by simple authority. Other mental monarchs rule by logic; Christ's word is law--it is satisfying to His subjects. His truth in the hands of His disciples, like the bread He broke upon the mountains, is an ample supply for the millions that gather at His table.”

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Author:Edward Thomson
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“Brought up a Presbyterian, indoctrinated from the Catechism, and being naturally of an inquiring mind, I fell a ready prey to the logic of infidelity, as soon as I began to think for myself. But that which at first threatened to be the utter shipwreck of faith in God and the Bible was, under God's providence, over-ruled for good, and merely wrecked my confidence in human creed and systems of Bible misinterpretations.”

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Book:Studies in the Scriptures
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“The main thesis of mind-physics holds that consciousness and matter are both manifestations of a more primary entity, and that the processes of manifestation exhibit equivalent invariances for both consciousness and matter. When the program for mind-physics is complete the subject-object dichotomy of modal logic, the polarity of concept-percept, and the antagonism between morality and technology will all come to an end. Then the non-repeatable experiment will be understood to be more primary than the traditional repeatable experiment.”

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Author:Paul Laffoley
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“Since my logic aims to teach and instruct the understanding, not that it may with the slender tendrils of the mind snatch at and lay hold of abstract notions (as the common logic does), but that it may in very truth dissect nature, and discover the virtues and actions of bodies, with their laws as determined in matter; so that this science flows not merely from the nature of the mind, but also from the nature of things.”

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Book:Works of Francis Bacon: 4
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“Some people will follow their minds without listening to their hearts, and others will follow their hearts without listening to their minds. This is why reason exists, for there to be balance between the heart and mind. We were not meant to follow the mind and ignore the heart. Instead, we were meant to follow the heart over the mind, but without completely abandoning logic. The middle way is the preferred way, and this path simply means to allow your heart to drive you, but do not forget to balance reason with your conscience.”

PeopleWayMindHeartMeanReasonForgetPathMiddleListeningBalanceConscienceLogicHeart And MindMiddle Way
Author:Suzy Kassem
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“It is they [men of science] who hold the secret of the mysterious property of the mind by which error ministers to truth, and truth slowly but irrevocably prevails. Theirs is the logic of discovery, the demonstration of the advance of knowledge and the development of ideas, which as the earthly wants and passions of men remain almost unchanged, are the charter of progress, and the vital spark in history.”

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Book:Lectures on Modern History
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“When philosophers talk about reason they often have in mind Having been in the business of philosophy more than half my life, I have learned that reason doesn't change many minds. But there's a more ordinary sense of resonableness, which involves not just logic but a sensitivity to other peoples real concerns, a desire to understand, even when you don't agree. Many people are reasonable in this way.I'm willing to think that the world will be made better by the conversations of reasonable people, even if there are unreasonable people and people who don't want to converse as well.”

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Author:Kwame Anthony Appiah
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