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Logic Quotes
"What does reason demand of a man? A very easy thing-to live in accord with his own nature."
38
"Exceptional claims demand exceptional evidence."
31
"The study of the art of motorcycle maintenance is really a miniature study of the art of rationality itself. Working on a motorcycle, working well, caring, is to become part of a process, to achieve an inner peace of mind. The motorcycle is primarily a mental phenomenon."
31
"Be aware of this truth that the people on this earth could be joyous, if only they would live rationally and if they would contribute mutually to each others' welfare.This world is not a vale of sorrows if you will recognize discriminatingly what is truly excellent in it; and if you will avail yourself of it for mutual happiness and well-being. Therefore, let us explain as often as possible, and particularly at the departure of life, that we base our faith on firm foundations, on Truth for putting into action our ideas which do not depend on fables and ideas which Science has long ago proven to be false."
30
"Is that all, sir? Only we've got stuff to finish before our knocking-off time, you see, and if we stay late we have to make more money to pay our overtime, and if the lads is a bit tired we ends up earning the money faster'n we can make it, which leads to a bit of what I can only call a conundrum-"You mean that if you do overtime you have to do more overtime to pay for it?" said Moist, still pondering how illogical logical thinking can be if a big enough committee is doing it."That's right, sir," said Shady. "And down that road madness lies."It's a very short road," said Moist, nodding."
30
"The gramophone record, the musical thought, the score, the waves of sound, all stand to one another in that pictorial internal relation, which holds between language and the world.To all of them the logical structure is common.(Like the two youths, their two horses and their lilies in the story. They are all in a certain sense one.)"
30
"All men are mortal. Socrates was mortal. Therefore, all men are Socrates."
29
"Facts are not truths they are not conclusions they are not even premisses but in the nature and parts of premisses."
26
"Newton invented a new form of reason. He expanded reason to handle infinitesimal changes and I think what is needed now is a similar expansion of reason to handle technological ugliness. The trouble is that the expansion has to be made at the roots, not at the branches, and that's what makes it hard to see."
25
"There's more to logic than identifying logical fallacies."
24
"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."
22
"That which can be asserted without evidence, can be dismissed without evidence."
22
"Correlation is not cause, it is just a 'music of chance'."
20
"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."
20
"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!"
20
"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."
20
"Just because an apple falls one hundred times out of a hundred does not mean it will fall on the hundred and first."
19
"I am afraid that I rather give myself away when I explain," said he. "Results without causes are much more impressive."
19
"I assure you, my good Lestrade, that I have an excellent reason for everything that I do."
19
"When I was in school the teachers told me practice makes perfect, then they told me nobody's perfect so I stopped practicing."
19
"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."
19
"Logic pervades the world the limits of the world are also the limits of logic."
19
"For nothing is more democratic than logic, it is no respecter of persons and makes no distinction between crooked and straight noses."
19
"There is no logic in logics except an illogical logic."
19
"To some extent the romantic condemnation of rationality stems from the very effectiveness of rationality in uplifting men from primitive conditions."
18
"If it's zero degrees outside today and it's supposed to be twice as cold tomorrow, how cold is it going to be?"
18
"Roughly speaking: to say of two things that they are identical is nonsense, and to say of one thing that it is identical with itself is to say nothing."
18
"There can never be surprises in logic."
18
"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."
17
"It had to be a trick or you couldn't have done it."
17
"A narrow hallway is all that separates rational from irrational, creativity from insanity, and intelligence from stupidity."
17
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