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, n. The art of thinking and reasoning in strict accordance with the limitations and incapacities of the human misunderstanding. The basic of logic is the syllogism, consisting of a major and a minor premise and a conclusion - thus: Major Premise: Sixty men can do a piece of work sixty times as quickly as one man. Minor Premise: One man can dig a post-hole in sixty seconds; Therefore- Conclusion: Sixty men can dig a post-hole in one second. This may be called syllogism arithmetical, in which, by combining logic and mathematics, we obtain a double certainty and are twice blessed.

All logic texts are divided into two parts. In the first part, on deductible logic, the fallacies are explained; in the second part, on inductive logic, they are committed.

It is difficult to remove by logic an idea not placed there by logic in the first place.

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?

Beneath words and logic are emotional connections that largely direct how we use our words and logic.

To know and not to know, to be conscious of complete truthfulne­ss while telling carefully constructe­d lies, to hold simultaneo­usly two opinions which cancelled out, knowing them to be contradict­ory and believing in both of them, to use logic against logic, to repudiate morality while laying claim to it, to believe that democracy was impossible and that the Party was the guardian of democracy.

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.

Our ego seeks to understand everything. It wants all the answers. Part of what destroys the ego and connects us with the light is doing things that absolutely don't make any sense. If we want something beyond logic, like a miracle, we have to do something that is beyond logic.

If one doesn't value logic, what logical argument would you invoke to prove they should value logic?

Since the attachment to the cult of Islam is psychological, the solution must also be psychological. We have all the logical proof that Islam is false. But logic has its limitation. Brainwashed people dismiss logic and pride themselves in their blind faith. Psychological warfare is extremely powerful. The Muslim bravado must be destroyed by humiliations and ridicule.

The main condition is that the spiritual ear should be open to overhear and patiently take in, and the will ready to obey that testimony which, I believe, God bears in every human heart, however dull, to those great truths which the Bible reveals. This, and not logic, is the way to grow in religious knowledge, to know that the truths of religion are not shadows, but deep realities.

I'm not at my best when I moralize or philosophize. Logic is elusive, especially to one who so rarely uses it.

It is probably true that almost all atheists stand for the values of reason and freethought. I will attempt to put these values in more substantial terms. There is the belief that inquiry and doubt are essential checks against deception, self deception, and error. There is the belief that logic and the scientific method is the only way the world can arrive at an agreement on the truth about anything.

General scepticism is the live mental attitude of refusing to conclude. It is a permanent torpor of the will, renewing itself in detail towards each successive thesis that offers, and you can no more kill it off by logic than you can kill off obstinacy or practical joking.

Mysteries of attraction could not always be explained through logic. Sometimes the fractures in two separate souls became the very hinges that held them together.

We have been snared in the coils of a spurious logic which insists that if we have found Him we need no more seek Him.

From lies to forgeries the step is not so long, and I have written technical essays on the logic of forgeries and on the influence of forgeries on history.

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

It may be that everything the life science companies are telling us will turn out to be right, and there's no problem here whatsoever. That defies logic.

To argue that we humans are capable of complex multifarious thought and feeling, whereas the sheep's perception is probably limited by lowly sheepish perceptions, is no more to the point than if I were to slaughter and eat you on the grounds that I am a sophisticated personality able to enjoy Mozart, formal logic and cannibalism, whereas your imaginative world seems confined to True Romances and tinned spaghetti.

My goal is simple. All I want to do is re-connect people with animals. Awaken some emotions and some feelings and some logic, that is been buried and suppressed, intentionally, by our society.

China has consistently surprised us. When I returned from the United States many years ago, it was unimaginable that we would end up where we are now. What China has achieved defies all logic. I credit this to the hard work and enterprising spirit of the Chinese people.

Chess is a unique battlefield for human minds and computers - human intuition, our creativity, fantasy, our logic, versus the brute force of calculation and a very small portion of accumulated knowledge infused by other human beings. So in chess we can compare these two incompatible things and probably make projections into our future. Is there danger that the human mind will be overshadowed by the power of computers, or we can still survive?

There can never be surprises in logic.

Deep in the human unconscious is a pervasive need for a logical universe that makes sense. But the real universe is always one step beyond logic.

There's a Mr. Hyde for every happy Jekyll face, a dark face on the other side of the mirror. The brain behind that face never heard of razors, prayers, or the logic of the universe. You turn the mirror sideways and see your face reflected with a sinister left-hand twist, half mad and half sane.

Sex and children are the two things that delude logic the most in this society.

The legislation of Quran will spread all over the world, because it agrees with the mind, logic and wisdom.

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.

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.

Forever I shall be a stranger to myself. In psychology as in logic, there are truths but no truth.

The theatre has always been to me a place where beautiful lies are told, and playwrighting the orchestration of platitudes around a central flaw in logic or a ridiculous idea. Acting — the disguise and impersonation — is an art of deception.

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

Does fuzzy logic tickle?

The laws against public nudity make no sense. The idea that Jerry Falwell can go topless while Cindy Crawford cannot is an absolute affront to logic, common sense and the 5000 year human struggle for aesthetic taste.

Faith isn't about logic, son," Haddek said. "Perhaps that's your problem. You cannot 'disprove' the things you study, any more than we can prove to you that the Hero will save us. We simply must believe it, and accept the things Preservation has taught us.

I'm not involved in any Philadelphia-related game or situation. When people claim I'm going to have a "vendetta" against every other Eastern Conference team I don't understand the logic: I'm not the one doling out the punishment.

We have an even worse situation in Syria, where the United States' allies are actually supporting people who are violently opposed to the United States, who are dangerous, radical Islamist fanatics. I mean, where is the logic of that? When are we going to call the Saudis on the support of intolerant, bigoted, fanatical types of Islam? When are we going to call this ally?

I perceive the world in fragments. It is somewhat like being on a very fast train and getting glimpses of things in strange scales as you pass by. A person can be very, very tiny. And a billboard can make a person very large. You see the corner of a house or you see a bird fly by, and it's all fragmented. Somehow, in painting I try to make some logic out of the world that has been given to me in chaos. I have a very pretentious idea that I want to make life, I want to make sense out of it. The fact that I am doomed to failure - that doesn't deter me in the least.

The example of a syllogism that he had studied in Kiesewetter's logic: Caius is a man, men are mortal, therefore Caius is mortal, had throughout his whole life seemed to him right only in relation to Caius, but not to him at all.

Some people have a gift for stupidity, an almost mystic ability to withstand any form of logic.

I spent 10 years in professional politics and eight writing comics, and so I look at it from both sides. I don't understand the logic in being frustrated with a system, so you choose to be a part of the reason why the system is so frustrating. If everybody voted, it wouldn't be this way.

First, those who disagree with market efficiency simply assert that it stands to common sense that greater effort to get facts and greater acumen in analyzing those facts will pay off in better performance somehow measured. (By this logic, cure for cancer must have been found by 1955).

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.

The decision-makers should communicate the customer pictures and the logic of the strategies and actions. That communication allows employees throughout the organization to implement the strategies and actions, tweaking them appropriately in response to variations in the marketplace. It also allows employees to recognize information in the marketplace that contradicts the customer pictures, either because the pictures were not entirely correct or because customers have changed.

I love Logic Audio and have been using it for years. All my track outputs used to come up on my old board in the same order as in the old Mac G4 - 1 through 32, came up as 1 through 32, for instance.

Alchemy and Kabbalah are later developments in my thinking. I think the primary interest has been the relationship of magic and mystery to logic and understanding. Those are the primary driving forces of my life. I have this ability, for some reason, to be able to hold both the Magical MysteryTour we're on in conjunction with the logical rigor of understanding theoretical physics, which makes me kind of a rare bird, because usually you're one or the other.