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There is no pure, disinterested, theory-free observation.

Karl Popper

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Karl Popper
Age: 92 †
Born: 1902
Born: July 28
Died: 1994
Died: September 17
Philosopher
Philosopher Of Science
Sociologist
University Teacher
Writer
Vienna
Austria
Karl Raimund Popper Sir
Karl Raimund
Sir Popper
Sir Karl Raimund Popper
Pure
Theory
Free
Disinterested
Observation

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Criticism of my alleged views was widespread and highly successful. I have yet to meet a criticism of my views.
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Good tests kill flawed theories we remain alive to guess again.
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Whenever we propose a solution to a problem, we ought to try as hard as we can to overthrow our solution, rather than defend it.
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The best thing that can happen to a human being us to find a problem, to fall in love with that problem, and to live trying to solve that problem, unless another problem even more lovable appears.
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The genuine rationalist does not think that he or anyone else is in possession of the truth nor does he think that mere criticism as such helps us achieve new ideas. But he does think that, in the sphere of ideas, only critical discussion can help us sort the wheat from the chaff.
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If you know that things are bound to happen whatever you do, then you may feel free to give up the fight against them.
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A theory that explains everything, explains nothing
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It is part of my thesis that all our knowledge grows only through the correcting of our mistakes.
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Simple statements are to be prized more highly than less simple ones because they tell us more because their empirical content is greater and because they are better testable.
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Science must begin with myths, and with the criticism of myths.
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There can be no ultimate statements science: there can be no statements in science which can not be tested, and therefore none which cannot in principle be refuted, by falsifying some of the conclusions which can be deduced from them.
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The question is not how to get good people to rule THE QUESTION IS: HOW TO STOP THE POWERFUL from doing as much damage as they can to us.
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no matter how many instances of white swans we may have observed, this does not justify the conclusion that all swans are white.
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The conspiracy theory of society... comes from abandoning god and then asking: Who is in his place
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No book can ever be finished. While working on it we learn just enough to find it immature the moment we turn away from it
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Some scientists find, or so it seems, that they get their best ideas when smoking others by drinking coffee or whisky. Thus there is no reason why I should not admit that some may get their ideas by observing, or by repeating observations.
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The war of ideas is a Greek invention. It is one of the most important inventions ever made. Indeed, the possibility of fighting with with words and ideas instead of fighting with swords is the very basis of our civilization, and especially of all its legal and parliamentary institutions.
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No particular theory may ever be regarded as absolutely certain.... No scientific theory is sacrosanct.
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Thus science must begin with myths, and with the criticism of myths neither with the collection of observations, nor with the invention of experiments, but with the critical discussion of myths, and of magical techniques and practices.
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The defence of democracy must consist in making anti-democratic experiences too costly for those who try them much more costly than a democratic compromise
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