Quotes About Logic

Among all the liberal arts, the first is logic, and specifically that part of logic which gives initial instruction about words. ... [T]he word "logic" has a broad meaning, and is not restricted exclusively to the science of argumentative reasoning. [It includes] Grammar [which] is "the science of speaking and writing correctly-the starting point of all liberal studies."

Logic is invincible, because in order to combat logic it is necessary to use logic.

Through logic and inference we can prove anything. Therefore, logic and inference, in contrast to ordinary daily living experience, are secondary instruments of knowledge. Probably tertiary.

Kurt Godel's achievement in modern logic is singular and monumental - indeed it is more than a monument, it is a landmark which will remain visible far in space and time. ... The subject of logic has certainly completely changed its nature and possibilities with Godel's achievement.

I'm not belittling the art world. Not at all. I take it quite seriously, actually. But the logic of art is a vanguard logic that pressures art to incorporate the quotient of risk.

His musical inspiration operates in a world uncluttered by conventional bar lines, conventional chord changes, and conventional ways of blowing or fingering a saxophone. Such practical 'limitations' did not even have to be overcome in his music; they somehow never existed for him. Despite this - or more accurately, because of this - his playing has a deep inner logic. Not an obvious surface logic, it is based on subtleties of reaction, subtleties of timing and color that are, I think, quite new to jazz - at least they have never appeared in so pure and direct a form.

It's often said that elephants are the most human of animals - there's something comical about their acquiescence, and tragic also. The long elephant poem - I was trying to write from the point of view of someone who had been seduced by the logic of his punishers and who, in a kind of awful way, could reproduce the very logic that had put him in this predicament in the first place. And maybe, in some kind of minor way, that's something I feel about myself, or maybe about all selves, that they fall in love with the thing that oppresses them.

Eventually, Aristotle appeared among the Greeks. He improved the methods of logic and systematized its problems and details. He assigned to logic its proper place as the first philosophical discipline and the introduction to philosophy. Therefore he is called the First Teacher.

Logic must look after itself. In a certain sense, we cannot make mistakes in logic.

I have said that science is impossible without faith. ... Inductive logic, the logic of Bacon, is rather something on which we can act than something which we can prove, and to act on it is a supreme assertion of faith ... Science is a way of life which can only fluorish when men are free to have faith.

If someone doesn’t value evidence, what evidence are you going to provide that proves they should value evidence. If someone doesn’t value logic, what logical argument would you invoke to prove they should value logic?

The fact that all Mathematics is Symbolic Logic is one of the greatest discoveries of our age; and when this fact has been established, the remainder of the principles of mathematics consists of the analysis of Symbolic Logic itself.

Poets do not go mad; but chess-players do. Mathematicians go mad, and cashiers; but creative artists very seldom. I am not, as will be seen, in any sense attacking logic: I only say that this danger does lie in logic, not in imagination.

Logic may indeed be unshakeable, but it cannot withstand a man who is determined to live.

Logic only tells us what's there; it can't really address what isn't. Even the most devoted empiricist must admit that we have no hope of understanding the universe. Some things are unknowable.

The message I hope to have sent is just the example of being yourself. I tell this to my students: It's not about copying me or my logic systems. It's about allowing yourself to be yourself.

Let no one rule your mind or body. Take special care that your thoughts remain unfettered... Give men your ear, but not your heart. Show respect for those in power, but don't follow them blindly. Judge with logic and reason, but comment not. Consider none your superior in life. Treat all fairly or they will seek revenge. Be careful with your money. Hold fast to your beliefs and others will listen.

Every Superstate has one iron rule: logic is an enemy and the truth is a menace.

What would mathematics have amounted to without the imagination of its devotees-its giants and their followers? There never was a discovery made without the urge of imagination-of imagination which broke the roadway through the forest in order that cold logic might follow.

We're not all the same. A common liberal refrain is that differences between individuals are statistically more significant than those between cultural, ethnic, and racial groups. I don't see why the fact of inter-individual differences would nullify inter-group variance. That's liberal logic for you.

And if at times you renounce experience and mind's heavy logic, it seems that the world has rushed along on its orbit, leaving you alone flying above a forgotten cloud bank, somewhere in the solitude of interstellar space.

No legal plunder: This is the principle of justice, peace, order, stability, harmony, and logic. Until the day of my death, I shall proclaim this principle with all the force of my lungs (which alas! is all too inadequate).

Be grateful simply for being alive. When you are grateful for life, pure and simple, your life becomes one you can be grateful for. That may strike you as circular or even backward logic, but your attitude really does have an effect on how things work out. When you can't change your life any other way, you can still change your attitude. When you do, your life changes. You find more chances to love, and you will be surprised to see how much more love is returned to you.

The best defense against logic is ignorance.

But you see, our society is still trapped in this binary, black/white logic and that has had some very positive implications for our generation. It's had some very negative ones as well and one of the negative ones is that it creates enormous identity problems for people who have one black ancestor and all white ancestors for example.

Mathematics and logic have been proved to be one; a fact from which it seems to follow that mathematics may successfully deal with non-quantitative problems in a much broader sense than was suspected to be possible.

Stop making sense. Logic is predictable. Think differently.

Certainly in order to understand the natural world one needs clarity, logic, and the capacity for theory building. But that understanding tends to improve because and to the extent that it is provisional, hypothetical, when it looks for disconfirmation in the particular rather than final proof as a universal.

Mystical experience of nature can be of particular relevance to our troubled age, bringing deeper into our consciousness and emotions the logic that nature sustains humanity as humanity must, in turn, sustain nature. Rationality alone, however, cannot be our guide in the task of restoring our environment. A spiritual connection to nature must inspire the emotional commitment that is the yin, complementing the yang of intellectual understanding.

I reached in experience the nirvana which is unborn, unrivalled, secure from attachment, undecaying and unstained. This condition is indeed reached by me which is deep, difficult to see, difficult to understand, tranquil, excellent, beyond the reach of mere logic, subtle, and to be realized only by the wise.

Our efforts are not aimed at isolating Israel or de-legitimizing it; rather we want to gain legitimacy for the cause of the people of Palestine. We only aim to de-legitimize the settlement activities and the occupation and apartheid and the logic of ruthless force, and we believe that all the countries of the world stand with us in this regard.

I cannot tell by what logic we call a toad, a bear, or an elephant ugly; they being created in those outward shapes and figures which best express the actions of their inward forms.

Logic and fact keep interfering with the easy flow of conversation.

The world is mystical, mysterious, powerful, brutal and awesome... it has a surreal logic, and moves in patterns, some of which can be unearthed and illuminated - on condition that I am listening - with my spirit, heart, eyes and guts on a single axis.

Mankind has moved away from the heart of the world to the logic of the mind, and their belief is in the chemist, the physicist, and the mathematician. Science has proven to them that all this ancient belief in ceremony is simply ignorance.

The difference between love and logic is that in the eyes of a lover, a toad can be a prince, whereas in the analysis of a logistician, the lover would have to prove that the toad was a prince, an enterprise destined to dull the shine of many a passion.

You can define a net two ways, depending on your point of view. Normally you would say it is a meshed instrument designed to catch fish. But you could, with no great injury to logic, reverse the image and define the net as a jocular lexicographer once did: he called it a collection of holes tied together with string.

The plant never lapses into mere arid functionalism; it fashions and shapes according to logic and suitability, and with its primeval force compels everything to attain the highest artistic form.

Far more quickly than reason and logic, irony can penetrate rage and puncture self-pity.

I get very involved in the internal logic of sentences.

There is another method of obtaining money... It does not presuppose the existence of accumulated results of previous development, and hence may be considered as the only one which is available in strict logic. This method of obtaining money is the creation of purchasing power by banks. The form it takes is immaterial.

The "happening" operates by creating an asymmetrical network of surprises, without climax or consummation, this is the alogism of dreams rather than the logic of most art.

In every enterprise ... the mind is always reasoning, and, even when we seem to act without a motive, an instinctive logic still directs the mind. Only we are not aware of it, because we begin by reasoning before we know or say that we are reasoning, just as we begin by speaking before we observe that we are speaking, and just as we begin by seeing and hearing before we know what we see or what we hear.

State censorship presents itself as a bulwark between society and forces of subversion or moral corruption. To dismiss this account of its own motives by the state as insincere would be a mistake: it is a feature of the paranoid logic of the censoring mentality that virtue ... must be innocent, and therefore, unless protected, vulnerable to the wiles of vice.

Men are apt to mistake the strength of their feeling for the strength of their argument. The heated mind resents the chill touch and relentless scrutiny of logic.

The knowledge of the theory of logic has no tendency whatever to make men good reasoners.

I tended to be more a romantic than a realist, and chose blind faith over cold logic.

Both fact and logic seem to me to support the view that savings invested in privately owned economic tools of production amount to an act of charity. And further, I believe it to be - as a type - the greatest economic charity of all.