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Logic Quotes
"Very little is needed for everything to be upset and ruined, only a slight lapse in reason."
9
"Exceptional claims demand exceptional evidence."
8
"Many people have said to me that I'm a mystic. I find that a bit mysterious. I just use logic and common sense for my philosophies."
8
"When speculation has done its worst two and two still make four."
7
"Any belief which encourages you to use your own intellect, which motivates you to question everything and points out your own mind as the only road for your salvation is a good belief!"
7
"That which can be asserted without evidence, can be dismissed without evidence."
6
"For nothing is more democratic than logic, it is no respecter of persons and makes no distinction between crooked and straight noses."
5
"It had to be a trick or you couldn't have done it."
4
"You will remember that I remarked the other day, just before we went into the very simple problem presented by Miss Mary Sutherland, that for strange effects and extraordinary combinations we must go to life itself, which is always far more daring than any effort of the imagination."A proposition which I took the liberty of doubting."You did, Doctor, but none the less you must come round to my view, for otherwise I shall keep on piling fact upon fact on you until your reason breaks down under them and acknowledges me to be right."
3
"I am afraid that I rather give myself away when I explain," said he. "Results without causes are much more impressive."
2
"I assure you, my good Lestrade, that I have an excellent reason for everything that I do."
2
"I was upset. I had always believed logic was a universal weapon and now I realized how its validity depended on the way it was employed."
2
"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."
2
"All men are mortal. Socrates was mortal. Therefore, all men are Socrates."
2
"There is no logic in logics except an illogical logic."
2
"A thousand minus one is never a thousand."
2
"Just because an apple falls one hundred times out of a hundred does not mean it will fall on the hundred and first."
1
"It is illogical to say, as many etatists do, that liberalism is hostile to or hates the state, because it is opposed to the transfer of the ownership of railroads or cotton mills to the state. If a man says that sulphuric acid does not make a good hand lotion, he is not expressing hostility to sulphuric acid as such; he is simply giving his opinion concerning the limitations of its use."
1
"But twice-two-makes-four is for all that a most insupportable thing. Twice-two-makes-four is, in my humble opinion, nothing but a piece of impudence. Twice-two-makes-four is a farcical, dressed-up fellow who stands across your path with arms akimbo and spits at you."
1
"A narrow hallway is all that separates rational from irrational, creativity from insanity, and intelligence from stupidity."
1
"Don't you believe in flying saucers, they ask me? Don't you believe in telepathy? - in ancient astronauts? - in the Bermuda triangle? - in life after death?No, I reply. No, no, no, no, and again no.One person recently, goaded into desperation by the litany of unrelieved negation, burst out "Don't you believe in anything?"Yes", I said. "I believe in evidence. I believe in observation, measurement, and reasoning, confirmed by independent observers. I'll believe anything, no matter how wild and ridiculous, if there is evidence for it. The wilder and more ridiculous something is, however, the firmer and more solid the evidence will have to be."
1
"In order to disprove the assertion that all crows are black, one white crow is sufficient."
1
"Never attribute to malevolence what is merely due to incompetence."
1
"And here is the point, about myself and my co-thinkers. Our belief is not a belief. Our principles are not a faith. We do not rely solely upon science and reason, because these are necessary rather than sufficient factors, but we distrust anything that contradicts science or outrages reason. We may differ on many things, but what we respect is free inquiry, openmindedness, and the pursuit of ideas for their own sake."
"If-Then" is a structured logic of humans' thought,who have memories and imagination in their mind. If both don't exist, Then this quote has never even been written."
"Apriority creates ambiguities among ideas."
"Rationality and common sense never goes out of fashion."
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