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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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The more we learn about the world, and the deeper our learning, the more conscious, specific, and articulate will be our knowledge of what we do not know, our knowledge of our ignorance
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Good tests kill flawed theories we remain alive to guess again.
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Our knowledge can only be finite, while our ignorance must necessarily be infinite.
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Better our hypotheses die for our errors than ourselves.
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Historically speaking all - or very nearly all - scientific theories originate from myths.
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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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Unlimited tolerance must lead to the disappearance of tolerance. If we extend unlimited tolerance even to those who are intolerant, if we are not prepared to defend a tolerant society, then the tolerant will be destroyed, and tolerance with them. We should therefore claim, in the name of tolerance, the right not to tolerate the intolerant.
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We should therefore claim, in the name of tolerance, the right not to tolerate the intolerant.
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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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A theory is just a mathematical model to describe the observations.
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We have the right not to tolerate the intolerant. We should tolerate even them whenever we can do so without running a great risk but the risk may become so great that we cannot allow ourselves the luxury.
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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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The conspiracy theory of society... comes from abandoning god and then asking: Who is in his place
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The fundamental thing about human languages is that they can and should be used to describe something and this something is, somehow, the world. To be constantly and almost exclusively interested in the medium - in spectacle-cleaning - is a result of a philosophical mistake.
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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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If you can't say it simply and clearly, keep quiet, and keep working on it till you can.
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Propose theories which can be criticized. Think about possible decisive falsifying experiments-crucial experiments. But do not give up your theories too easily-not, at any rate, before you have critically examined your criticism.
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It is not his possession of knowledge, of irrefutable truth, that makes the man of science, but his persistent and recklessly critical quest for truth.
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The influence (for good or ill) of Plato's work is immeasurable. Western thought, one might say, has been Platonic or anti-Platonic, but hardly ever non-Platonic.
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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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