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Logic Quotes

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Logic Quotes

“Critical thinking using root definitions is a skill set that allows an individual, by themselves, to judge and settle disputes as well as set limits on what is considered to be morally ethical and correct manners of someone who has one’s behavior in society. However, critical thinking is much more than its root definition. Critical thinking is skillfully defining, intellectualizing, analyzing, and evaluating data and information gathered from all sources and producing belief and action in rhetoric that provides clarity and consistency through evidence and reason.”

“...the way that the words hung together to produce meaning had a logic that he could not follow, and sometimes he thought that this was because they spoke in images, immediate, sensuous images, that their minds had escaped the temporal relationships that had defined the language of the past and instead they lived in an eternal, causeless present, a world of pure simultaneity.”

“Russell’s paradox threatened to deal a far more serious blow to set theory than earlier ideological objections. The problem was this: consider a set of objects – all possible types of cheesecake, say. This set may include any number of different cheesecakes (New York cheesecake, German Käsekuchen, lemon ricotta, etc.) but, because a set is not literally a cheesecake, the set of all cheesecakes is not a member of itself. The set of all things that are not cheesecakes, on the other hand, is a member of itself. But what, Russell wondered, about the set of all sets that are not members of themselves. If this is not a member of itself, then, by definition, it should be (because its members do not include itself). Conversely, if it is a member of itself, then it should not be (because it does). This was Russell’s paradox in a nutshell. His analysis of the paradox revealed it to be similar in form to several others, including the liar’s paradox (‘this statement is a lie’). ‘It seemed unworthy of a grown man to spend time on such trivialities,’ he complained, desperate for a solution, ‘but what was I to do?”

“Science and Metaphysics show us part of what “is”. Logic and Epistemology help us interpret this part and understand how much of it we can really know. And finally, Ethics teaches us how to embrace this knowledge and how to cherry-pick only those things that will give us endurance and contentment in the long run, avoiding those that may keep our hearts buried in the ground; how to live well and decently and how to help the society function properly.”

“Some people believe that explanations which do not involve matter are supernatural. In fact, material explanations are themselves supernatural. How can lifeless matter produce life? There’s nothing natural about that. How can mindless matter produce mind? What’s natural about that? How can temporal and contingent matter come into existence in the first place? You can’t get existence from non-existence. That’s logic 101.”

“We assume that there is nothing in the entirety of our existence that cannot be wrestled into submission and rendered sterile through the application of man’s logical rubrics. Logically speaking, that assumption is far too arrogant and simply too limited to explain the need of our humanity to live in a world that will forever tease our imaginations and have ample room to incessantly invite us out into the unknown.”

“For example, in the example with Terry and Chester, a person who was just beginning to meet the two could come up with the conclusion based on those two axioms, which a friend revealed to him/her. The person might try to come up with a solution to Terry’s hatred of Chester’s voice, and decide to teach the two characters American Sign Language, so Chester wouldn’t have to speak, but the person might later on discover that Terry seems to be functioning normally when Chester talks during casual, everyday conversations. It’s not that the person’s logic was incorrect; the conclusion was logically valid and logically followed the two axioms. It’s just that the axioms were accepted and assumed to be true. In reality, when the friend of Terry and Chester was referring to Chester’s “voice,” the friend was talking about Chester’s singing voice, not Chester’s actual voice, and the phrase “Terry hates everything Chester likes” could have been used hyperbolically, meaning that Terry does not literally hate everything Chester likes. The person came up with a logical conclusion, but the axioms were just immediately accepted as true; the person was not evaluating or verifying the information, nor was the person analyzing the multiple meanings behind the axioms. With critical thinking, however, there are a few stages that are required before making a conclusion: there is remember and understand, so to understand information, a person would need to see if the information makes sense or is plausible. For example, if a person was learning about the properties of matter, he/she should be able to understand that it makes sense for liquid to have faster moving molecules than solid matter, because it does not have a definite shape unless it is put into some container, or he/she might try to scroll through multiple sources of information to fill any gaps in understanding and confirm information. Unlike logic, which immediately accepts axioms as true to create a conclusion, a person must look at information with a critical eye in order to truly understand it in critical thinking. In addition, I think there is more skill and effectiveness behind deeply thinking about information (critical thinking) than trying to discover information (logic.) When it comes to thinking about the information (critical thinking), a person would have to understand the information’s real-world application (apply), the components of the information (analyze), the significance of the information (evaluate), and what can be made out with that information (synthesize.) Logic is an objective approach to trying to discover valid information, and it is highly important, but there is that lack of deep thinking when it comes to logic alone. A person would need critical thinking to verify the axioms and see the significance of the conclusion. Logic itself cannot view the significance of the conclusion Terry hates Chester’s voice, because it is meant to discover information based on axioms, not evaluate and make something out of information. With this, I do find that critical thinking is more important and has a higher range of skill than logic.”

“Die Sprache ist ja nicht nur, was sie ist (sie ist ganz bestimmt nicht, was Duden aus ihr machen möchte, und noch weniger ist sie, wozu unsere hundsföttischen Reformer, von denen Sie wohl bald noch erfahren werden, sie im Augenblick gerade wieder erniedrigen möchten), sondern sie ist auch, was der Einzelne aus ihr macht. So ein Einzelner sind Sie. [...] Geändert habe ich entschlossen »möglich viel« in »möglichst viel«. Sie haben ganz recht, daß man »möglich«, logisch gesehen, nicht steigern kann. Aber die Sprache ist liebenswürdiger als die Logik. Ich habe keine Erklärung dafür, warum ausgerechnet dieses adverbiell gebrauchte Möglich gesteigert wird, denn alle anderen vergleichbaren Beispiele, die mir einfallen, werden nicht gesteigert (bedeutend, entscheidend, rechtschaffen usw.). Könnte es nicht sein, daß die Steigerung über die Negation, also über »unmöglich« in die Sprache eingedrungen ist? Denn offensichtlich fällt es leicht zu sagen: das und das ist mir unmöglich, noch unmöglicher erscheint mir das und das, aber das Unmöglichste ist mir das und das. Also, was am Ende durch Goethe und andere, die nur wenig schlechter waren, Sprache geworden ist, das darf man schon akzeptieren.”

“No supporter of reason and logic, no one convinced by reason and logic, would ever say, “You know what, it’s irrational and illogical to go all the way to absolute rationality and logic. We ought to stop at 87.3% of absolute rationality and logic. That would of course be an arbitrary, hence irrational and illogical, stance. Once you have embarked upon the road of reason and logic, you must go all the way to 100% reason and logic since there is no reason or logic why you wouldn’t.”

“Logic, reason, and common sense are your best tools for synthesizing reality and understanding what to do about it. Be wary of relying on anything else. Unfortunately, numerous tests by psychologists show that the majority of people follow the lower-level path most of the time, which leads to inferior decisions without their realizing it. As Carl Jung put it, “Until you make the unconscious conscious, it will direct your life and you will call it fate.” It’s even more important that decision making be evidence-based and logical when groups of people are working together. If it’s not, the process will inevitably be dominated by the most powerful rather than the most insightful participants, which is not only unfair but suboptimal. Successful organizations have cultures in which evidence-based decision making is the norm rather than the exception.”