48 Logic Quotes To Inspire

When life gets complicated, sometimes all we need is a dose of logic to bring clarity and inspiration. Whether you're seeking motivation in your personal pursuits or looking for a fresh perspective to tackle challenges, the wisdom of logical thinkers can be incredibly grounding. Our curated collection of the top 48 Logic Quotes is here to ignite your intellect and provide those aha moments that can drive real change. Prepare to be inspired by insights that cut through the noise and get straight to the heart of the matter.

1. “The highest function of love is that it makes the loved one a unique and irreplaceable being.” - Tom Robbins

2. “There are crimes of passion and crimes of logic. The boundary between them is not clearly defined.” - Albert Camus

3. “If reason ruled the world would history even exist?” - Ryszard Kapuściński

4. “Consequently, if you believe God made Satan, you must realize that all Satan's power comes from God and so that Satan is simply God's child, and that we are God's children also. There are no children of Satan, really.” - Anne Rice

5. “All opinions are not equal. Some are a very great deal more robust, sophisticated and well supported in logic and argument than others.” - Douglas Adams

6. “It is always easy to be logical. It is almost impossible to be logical to the bitter end.” - Albert Camus

7. “When you kill a man, You steal a life. You steal his wife's right to a husband, Rob his children of a father.” - Khaled Hosseini

8. “When once your point of view is changed, the very thing which was so damning becomes a clue to the truth.” - Arthur Conan Doyle

9. “Cynicism, like gullibility, is a symptom of underdeveloped critical faculties.” - Jamie Whyte

10. “I have often had a retrospective vision where everything in my past life seems to fall with significance into logical sequence.” - Ansel Adams

11. “One can ask why the I has to appear in the cogito {Descartes’ argument “I think therefore I am.}, since the cogito, if used rightly, is the awareness of pure consciousness, not directed at any fact or action. In fact the I is not necessary here, since it is never united directly to consciousness. One can even imagine a pure and self-aware consciousness which thinks of itself as impersonal spontaneity.” - Jean-Paul Sartre

12. “What does the brain matter compared with the heart?” - Virginia Woolf

13. “The explanations for the things we do in life are many and complex. Supposedly mature adults should live by logic, listen to their reason. Think things out before they act.But maybe they never heard what Dr. London told me one, Freud said that for the little things in life we should react according to our reason. But for really big decisions, we should heed what our unconscious tells us.” - Erich Segal

14. “The idea was fantastically, wildly improbable. But like most fantastically, wildly improbable ideas it was at least as worthy of consideration as a more mundane one to which the facts had been strenuously bent to fit.” - Douglas Adams

15. “For, after all, how do we know that two and two make four? Or that the force of gravity works? Or that the past is unchangeable? If both the past and the external world exist only in the mind, and if the mind itself is controllable – what then?” - George Orwell

16. “No. The moral of the story in so far as it has one is that cannibals can study logic, and that if you are going to leave the path, you better have your wits about you and know better than to trust the first scary old lady who talks to you in public.” - Nick Harkaway

17. “For nothing is more democratic than logic; it is no respecter of persons and makes no distinction between crooked and straight noses.” - Friedrich Nietzsche

18. “Everything must be taken into account. If the fact will not fit the theory---let the theory go.” - Agatha Christie

19. “How do you feel right now?" "I hurt like hell.""You'll feel worse tomorrow.""So?""So, better get a jump on this while you still feel...not as bad.""What kind of logic is that?" I retorted.” - Richelle Mead

20. “We humans seem to be extremely good at generating ideas, theories, and explanations that have the ring of plausibility. We may be relatively deficient, however, in evaluating and testing our ideas once they are formed” - Thomas Gilovich

21. “For desired conclusions, we ask ourselves, "Can I believe this?", but for unpalatable conclusions we ask, "Must I believe this?” - Thomas Gilovich

22. “What we believe is heavily influenced by what we think others believe” - Thomas Gilovich

23. “A singer can shatter glass with the proper high note," he said, "but the simplest way to break glass is simply to drop it on the floor.” - Anne Rice

24. “Kindness is strength. Good-nature is often mistaken for virtue, and good health sometimes passes for genius. Anger blows out the lamp of the mind. In the examination of a great and important question, every one should be serene, slow-pulsed, and calm. Intelligence is not the foundation of arrogance. Insolence is not logic. Epithets are the arguments of malice.” - Robert Green Ingersoll

25. “Each religion makes scores of purportedly factual assertions about everything from the creation of the universe to the afterlife. But on what grounds can believers presume to know that these assertions are true? The reasons they give are various, but the ultimate justification for most religious people’s beliefs is a simple one: we believe what we believe because our holy scriptures say so. But how, then, do we know that our holy scriptures are factually accurate? Because the scriptures themselves say so. Theologians specialize in weaving elaborate webs of verbiage to avoid saying anything quite so bluntly, but this gem of circular reasoning really is the epistemological bottom line on which all 'faith' is grounded. In the words of Pope John Paul II: 'By the authority of his absolute transcendence, God who makes himself known is also the source of the credibility of what he reveals.' It goes without saying that this begs the question of whether the texts at issue really were authored or inspired by God, and on what grounds one knows this. 'Faith' is not in fact a rejection of reason, but simply a lazy acceptance of bad reasons. 'Faith' is the pseudo-justification that some people trot out when they want to make claims without the necessary evidence.But of course we never apply these lax standards of evidence to the claims made in the other fellow’s holy scriptures: when it comes to religions other than one’s own, religious people are as rational as everyone else. Only our own religion, whatever it may be, seems to merit some special dispensation from the general standards of evidence.And here, it seems to me, is the crux of the conflict between religion and science. Not the religious rejection of specific scientific theories (be it heliocentrism in the 17th century or evolutionary biology today); over time most religions do find some way to make peace with well-established science. Rather, the scientific worldview and the religious worldview come into conflict over a far more fundamental question: namely, what constitutes evidence.Science relies on publicly reproducible sense experience (that is, experiments and observations) combined with rational reflection on those empirical observations. Religious people acknowledge the validity of that method, but then claim to be in the possession of additional methods for obtaining reliable knowledge of factual matters — methods that go beyond the mere assessment of empirical evidence — such as intuition, revelation, or the reliance on sacred texts. But the trouble is this: What good reason do we have to believe that such methods work, in the sense of steering us systematically (even if not invariably) towards true beliefs rather than towards false ones? At least in the domains where we have been able to test these methods — astronomy, geology and history, for instance — they have not proven terribly reliable. Why should we expect them to work any better when we apply them to problems that are even more difficult, such as the fundamental nature of the universe?Last but not least, these non-empirical methods suffer from an insuperable logical problem: What should we do when different people’s intuitions or revelations conflict? How can we know which of the many purportedly sacred texts — whose assertions frequently contradict one another — are in fact sacred?” - Alan Sokal

26. “Logic kills. Faith burns. Better to be the one with the torch than the one on the pyre.” - Chris Galford

27. “Faith is the mortar that fills the cracks in the evidence and the gaps in the logic, and thus it is faith that keeps the whole terrible edifice of religious certainty still looming dangerously over our world.” - Sam Harris

28. “To think or not to think? That is the new question.” - Nadina Boun

29. “It's been said before: 'The sleep of reason produces monsters.” - Apostolos Doxiadis

30. “Put a man on the brink of the abyss and - in the unlikely event that she doesn't fall into it - he will become a mystic or a madman... Which is probably the same thing!” - Apostolos Doxiadis

31. “When people attempt to rebel against the iron logic of Nature, they come into conflict with the very same principles to which they owe their existence as human beings. Their actions against Nature must lead to their own downfall.” - Adolf Hitler

32. “So how does one go about proving something like this? It's not like being a lawyer, where the goal is to persuade other people; nor is it like a scientist testing a theory. This is a unique art form within the world of rational science. We are trying to craft a "poem of reason" that explains fully and clearly and satisfies the pickiest demands of logic, while at the same time giving us goosebumps.” - Paul Lockhart

33. “How often people speak of art and science as though they were two entirely different things, with no interconnection. An artist is emotional, they think, and uses only his intuition; he sees all at once and has no need of reason. A scientist is cold, they think, and uses only his reason; he argues carefully step by step, and needs no imagination. That is all wrong. The true artist is quite rational as well as imaginative and knows what he is doing; if he does not, his art suffers. The true scientist is quite imaginative as well as rational, and sometimes leaps to solutions where reason can follow only slowly; if he does not, his science suffers.” - Isaac Asimov

34. “It remains to mention some of the ways in which people have spoken misleadingly of logical form. One of the commonest of these is to talk of 'the logical form' of a statement; as if a statement could never have more than one kind of formal power; as if statements could, in respect of their formal powers, be grouped in mutually exclusive classes, like animals at a zoo in respect of their species. But to say that a statement is of some one logical form is simply to point to a certain general class of, e.g., valid inferences, in which the statement can play a certain role. It is not to exclude the possibility of there being other general classes of valid inferences in which the statement can play a certain role” - P. F. Strawson

35. “the squeeky wheel gets the grease.” - Josh Billings

36. “It seemed to me,' said Wonko the Sane, 'that any civilization that had so far lost its head as to need to include a set of detailed instructions for use in a package of toothpicks, was no longer a civilization in which I could live and stay sane.” - Douglas Adams

37. “...but that was the thing about reality. It didn't need to make sense.” - Mira Grant

38. “Annie clouded up. For a second, he thought she was going to erupt, and flinched. She saw that...and got control of herself with an visible effort. She took three deep breaths, each longer than the last, and her features became serene.All at once it seemed totally clear to Mike that she was right and he was nuts - that his ingenius theory was nonsense, childish, fantasty bullshit. His conviction evaporated, and he was ashamed. He felt his cheeks grow hot, groped for words with which to backtrack -"I have to admit I have no better explanation for the the facts," Annie said slowly.Again, Mike did an emotional instant 180. "Holy shit -"She held up a hand. "I am going to think now. Very hard, for a long time. You will be as quiet as possible while I do." She got up from the computer, went to the bed, and lay down. "Think yourself, or read, or play games with the headphones on, or go Topside if you like." She clasped her hands on her belly, closed her eyes and appeared to go to sleep” - Spider Robinson

39. “World domination is such an ugly phrase. I prefer to call it world optimisation.” - Eliezer Yudkowsky

40. “Logic is always defeated by itself, that is to say, by the insignificance of thecases on which it thrives.’ Ibid-25bit.ly/Mnhoc7” - Deleuze

41. “You may only get this one life – but lived free of submissive reverence – that is still a thing of rampant beauty.” - Trevor Treharne

42. “Yeah, all right, but everyone knows they torture people," mumbled Sam."Do they?" said Vimes. "Then why doesn't anyone do anything about it?""'cos they torture people.” - Terry Pratchett

43. “I lose faith in mathematics, logical and rigid. What with those that even zero doesn’t accept?” - Dejan Stojanovic

44. “How can we satisfy ourselves without going on in infinitum? And, after all, what satisfaction is there in that infinite progression? Let us remember the story of the Indian philosopher and his elephant. It was never more applicable than to the present subject. If the material world rests upon a similar ideal world, this ideal world must rest upon some other; and so on, without end. It were better, therefore, never to look beyond the present material world.” - David Hume

45. “Painting is so poetic, while sculpture is more logical and scientific and makes you worry about gravity.” - Damien Hirst

46. “The belief that rational and quantifiable disciplines such as science can be used to perfect human society is no less absurd than a belief in magic, angels, and divine intervention.” - Chris Hedges

47. “All men are mortal. Socrates was mortal. Therefore, all men are Socrates.” - Woody Allen

48. “Cursed luck! —said he, biting his lip as he shut the door, —for man to be master of one of the finest chains of reasoning in nature, —and have a wife at the same time with such a head-piece, that he cannot hang up a single inference within side of it, to save his soul from destruction.” - Laurence Sterne