Logic Quotes

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In this one terrified moment, my mind couldn't focus on any of it. I've forgotten everything. No, you haven't. His voice in the darkness was calm and reassuring. He smoothed back my hair and pressed one of those half kisses to my forehead. Just relax and focus." His reasonable words centered me and allowed the gears of logic that ran my life to take over again.

Professor Whitehead has recently restored a seventeenth century phrase—"climate of opinion." The phrase is much needed. Whether arguments command assent or not depends less upon the logic that conveys them than upon the climate of opinion in which they are sustained.

Our exploration of emergent social structures across domains of human activity and experience leads to an over-arching conclusion: as an historical trend, dominant functions and processes in the Information Age are increasingly organized around networks. Networks constitute the new social morphology of our societies, and the diffusion of networking logic substantially modifies the operation and outcomes in processes of production, experience, power, and culture. While the networking form of social organization has existed in other times and spaces, the new information technology paradigm provides the material basis for its pervasive expansion throughout the entire social structure.

Manuel Castells

The development of design principles based on objective visual tests, experience, and logic; the pursuit of research in the physiological and psychological effects of color; and investigations in perceptibility and readability in typography are being carried on in other fields... such a movement in cartography cannot fail to materialize

Arthur H. Robinson

This man, this Douglass, this former slave, this Negro
beaten to his knees, exiled, visioning a world
where none is lonely, none hunted, alien,
this man, superb in love and logic, this man
shall be remembered.

I have tried to find some explanation that does not rely on logic, but once the borders of rationality have been removed I cannot imagine what should take their place. How does one begin to measure? What standards should one apply?
The prince understood what she meant. Once reason was no longer your guide, you were like a man stranded in a featureless landscape. There were no landmarks to use. One direction was as likely to yield results as any other.

We have seen the highest circle of spiraling powers. We have named this circle God. We might have given it any other name we wished: Abyss, Mystery, Absolute Darkness, Absolute Light, Matter, Spirit, Ultimate Hope, Ultimate Despair, Silence.
But we have named it God because only this name, for primordial reasons, can stir our hearts profoundly. And this deeply felt emotion is indispensable if we are to touch, body with body, the dread essence beyond logic.
Within this gigantic circle of divinity we are in duty bound to separate and perceive clearly the small, burning arc of our epoch.

Nikos Kazantzakis

What hope there is derives from Freud's assumption that human nature is not so much a hierarchy of high-low, and good-bad, as his predecessors believed, but rather a jostling democracy of contending predispositions, deposited in every nature in roughly equal intensities. … Psychoanalysis is full of such mad logic; it is convincing only if the student of his own life accepts Freud's egalitarian revision of the traditional idea of a hierarchical human nature.

The state-initiated referendum has always been a part of this [anti-democratic] logic. Stop the talk, we're going to decide, yes or no. At this point the citizen's role is to wave one flag or the other and cheer for one side of the simple question or the other. In other words, we're reduced to children.

John Ralston Saul

The world is full of self-organizing systems, systems that form structures not merely in response to inputs from outside but also, indeed primarily, in response to their own internal logic. Global weather is a self-organizing system; so, surely, is the global economy.

All acts of reasoning seem to me to be different cases of one uniform process which may perhaps be best described as the substitution of similars... The chief difficulty consists in showing that all the forms of the old logic, as well as the fundamental rules of mathematical reasoning, may be explained upon the same principle; and it is to this difficult task I have devoted the most attention.

William Stanley Jevons

The new and wonderful results of the late Dr. Boole's mathematical system of Logic appear to develop themselves as most plain and evident consequences of the self-same process of substitution, when applied to the Primary Laws of Thought. Should my notion be true, a vast mass of technicalities may be swept from our logical text-books, and yet the small remaining part of logical doctrine will prove far more useful than all the learning of the Schoolmen.

William Stanley Jevons

But how can we avoid the use of human language? The... symbol. Only by using a symbolic language not yet usurped by those vague ideas of space, time, continuity which have their origin in intuition and tend to obscure pure reason—only thus may we hope to build mathematics on the solid foundation of logic.

Conservatives used to care too much about values and republicanism to buy ends-justify-the-means logic. But it increasingly appears that political expedience now outweighs basic morality. At least one side of the political spectrum seemed to care about truth. Now both sides are competing to see who can race to the bottom fastest.

Developing a compiler was a logical move; but in matters like this, you don't run against logic — you run against people who can't change their minds.

The design of the following treatise is to investigate the fundamental laws of those operations of the mind by which reasoning is performed; to give expression to them in the symbolical language of a Calculus, and upon this foundation to establish the science of Logic and construct its method ; to make that method itself the basis of a general method for the application of the mathematical doctrine of Probabilities ; and, finally, to collect from the various elements of truth brought to view in the course of these inquiries some probable intimations concerning the nature and constitution of the human mind.

Why is it, my shadow-striding friend, that we don't fear dreams? We lose consciousness, lose control, things happen with no apparent logic and abiding by no apparent rules.... We don't fear dreams, but we do fear madness, and death terrifies us.

We are creatures, not only of the mind, but of feelings and emotions as well. Indeed, feelings and emotions are more fundamental to our being than pure logic and reasoning.

Varadaraja V. Raman

The World and Life are one. Physiological life is of course not "Life". And neither is psychological life. Life is the world.
Ethics does not treat of the world. Ethics must be a condition of the world, like logic.
Ethics and Aesthetics are one.

Ludwig Wittgenstein

The typical coupling mechanisms of authority of office and logic of the task do not operate in educational organizations.

I am the logic of all arguments - Arguments are of three kinds: arrogant argument, destructive criticism and logical argument.

I do not disbelieve that in some mysterious transcendental sense, as involved in the system of the entire universe, with so vast an arc that no faculty of man can apprehend its curve, that in some such sense the Catholic doctrine of the atonement may be true. But a doctrine out of which, with our reason, our feeling, our logic, I at least can gather any practical instruction for mankind — any deeper appreciation of the attributes of God, any deeper love for Him, any stimulant towards our own obedience — such a doctrine I cannot find it. I bury what I am to think of it in the deepest corner of my own heart, where myself I fear to look.

James Anthony Froude

my father's rejection of all that is called religious belief, was not, as many might suppose, primarily a matter of logic and evidence: the grounds of it were moral, still more than intellectual. He found it impossible to believe that a world so full of evil was the work of an Author combining infinite power with perfect goodness and righteousness.

John Stuart Mill

... organized labor... rushes to support the party without demanding a turn away from corporatism toward workers' needs. This is the logic of the lesser of two evils. It tethers labor to a relentless slide deeper into the corporate power pits year after year.

The logic of worldly success rests on a fallacy: the strange error that our perfection depends on the thoughts and opinions and applause of other men! A weird life it is, indeed, to be living always in somebody else's imagination, as if that were the only place in which one could at last become real!