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A theory is just a mathematical model to describe the observations.

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
Describe
Observation
Mathematical
Model
Models
Atheism
Theory
Religion
Observations

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The survival value of intelligence is that it allows us to extinct a bad idea, before the idea extincts us.
Karl Popper
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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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It is wrong and dangerous to extol freedom by telling people that they will certainly be all right once they are free. The most we can say of democracy or freedom is that they give our personal abilities a little more influence on our well-being.
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Historically speaking all - or very nearly all - scientific theories originate from myths.
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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.
Karl Popper
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My thesis is that what we call 'science' is differentiated from the older myths not by being something distinct from a myth, but by being accompanied by a second-order tradition-that of critically discussing the myth. ... In a certain sense, science is myth-making just as religion is.
Karl Popper
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The open society is one in which men have learned to be to some extent critical of taboos, and to base decisions on the authority of their own intelligence.
Karl Popper
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Our knowledge can only be finite, while our ignorance must necessarily be infinite.
Karl Popper
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Those who promise us paradise on earth never produced anything but a hell.
Karl Popper
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Reason like science, grows by way of mutual criticism the only possible way of planning its growth is to develop those institutions that safeguard. the freedom of thought
Karl Popper
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True ignorance is not the absence of knowledge, but the refusal to acquire it.
Karl Popper
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The game of science is, in principle, without end. He who decides one day that scientific statements do not call for any further test, and that they can be regarded as finally verified, retires from the game.
Karl Popper
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The old scientific ideal of episteme - of absolutely certain, demonstrable knowledge - has proved to be an idol. The demand for scientific objectivity makes it inevitable that every scientific statement must remain tentative for ever.
Karl Popper
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Science may be described as the art of systematic over-simplification.
Karl Popper
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. . . it seems to me certain that more people are killed out of righteous stupidity than out of wickedness.
Karl Popper
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It is part of my thesis that all our knowledge grows only through the correcting of our mistakes.
Karl Popper
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There is no pure, disinterested, theory-free observation.
Karl Popper
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A theory which is not refutable by any conceivable event is non-scientific. Irrefutability is not a virtue of a theory (as people often think) but a vice.
Karl Popper
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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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I have spoken to Einstein and he admitted to me that his theory was in fact no different from the one of Parmenides.
Karl Popper