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"Logic and mathematics are nothing but specialised linguistic structures."
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"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."
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Personal Development
"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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"In order to disprove the assertion that all crows are black, one white crow is sufficient."
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Personal Development
"For nothing is more democratic than logic, it is no respecter of persons and makes no distinction between crooked and straight noses."
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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
"Reason itself is fallible, and this fallibility must find a place in our logic."
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"Scientific thought, then, is not momentary; it is not a static instance; it is a process."
Thought
"I have always detested any departure from reality, an attitude which I relate to my mother's poor mental health."
Attitude
"On the one hand, there are individual actions such as throwing, pushing, touching, rubbing. It is these individual actions that give rise most of the time to abstraction from objects."
Time
"Scientific knowledge is in perpetual evolution; it finds itself changed from one day to the next."
Knowledge
"Logic and mathematics are nothing but specialised linguistic structures."
Logic
"Our problem, from the point of view of psychology and from the point of view of genetic epistemology, is to explain how the transition is made from a lower level of knowledge to a level that is judged to be higher."
Knowledge
"During the earliest stages the child perceives things like a solipsist who is unaware of himself as subject and is familiar only with his own actions."
Action
"To express the same idea in still another way, I think that human knowledge is essentially active."
Creativity
"From this time on, the universe is built up into an aggregate of permanent objects connected by causal relations that are independent of the subject and are placed in objective space and time."
Time
"Logical positivists have never taken psychology into account in their epistemology, but they affirm that logical beings and mathematical beings are nothing but linguistic structures."
Nothing
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