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"We seldom make logical mistakes, but often have mistaken logics."
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Personal Development
"A thousand minus one is never a thousand."
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Personal Development
"In order to disprove the assertion that all crows are black, one white crow is sufficient."
Author Name
Personal Development
"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."
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Personal Development
"A narrow hallway is all that separates rational from irrational, creativity from insanity, and intelligence from stupidity."
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Personal Development
"The existence of a majority logically implies a corresponding minority."
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Personal Development
"The rule is, jam tomorrow and jam yesterday - but never jam today."
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Personal Development
"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."
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Personal Development
"Arguments cannot be answered by personal abuse; there is no logic in slander, and falsehood, in the long run, defeats itself."
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Personal Development
"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."
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Personal Development
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"He had read much, if one considers his long life; but his contemplation was much more than his reading. He was wont to say that if he had read as much as other men he should have known no more than other men."
Men
"It is not only the living who are killed in war."
War
"Meanwhile, fears of universal disaster sank to an all time low over the world."
Time
"If knowledge can create problems, it is not through ignorance that we can solve them."
Knowledge
"Science fiction writers foresee the inevitable, and although problems and catastrophes may be inevitable, solutions are not."
Science
"The saddest aspect of life right now is that science gathers knowledge faster than society gathers wisdom."
Life
"The age of the pulp magazine was the last in which youngsters, to get their primitive material, were forced to be literate."
Education
"All roads lead to Trantor, and that is where all stars end."
Philosophy
"Once, when a religionist denounced me in unmeasured terms, I sent him a card saying, "I am sure you believe that I will go to hell when I die, and that once there I will suffer all the pains and tortures the sadistic ingenuity of your deity can devise and that this torture will continue forever. Isn't that enough for you? Do you have to call me bad names in addition?"
Religion
"Some readers may realize that this story, first published in 1956, has been overtaken by events. In 1965, astronomers discovered that Mercury does not keep one side always to the Sun, but has a period of rotation of about fifty-four days, so that all parts of it are exposed to the sunlight at one time or another.Well, what can I do except say that I wish astronomers would get things right to begin with?And I certainly refuse to change the story to suit their whims."
Science
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