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Our knowledge can only be finite, while our ignorance must necessarily be infinite.

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
Ignorant
Necessarily
Infinite
Ignorance
Learning
Knowledge
Science
Must
Finite

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With regards to political enemies Plato had a kill-and-banish principle. ... In interpreting it , modern-day Platonists are clearly disturbed by it, even as they make elaborate attempts to defend Plato.
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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.
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I see now more clearly than ever before that even our greatest troubles spring from something that is [as] admirable and sound as it is dangerous – from our impatience to better the lot of our fellows.
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A theory that explains everything, explains nothing
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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 attempt to make heaven on earth invariably produces hell.
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The history of science is everywhere speculative. It is a marvelous hiatory. It makes you proud to be a human being.
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Now this principle of induction cannot be a purely logical truth like a tautology or an analytic statement. . . .
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A system is empirical or scientific only if it is capable of being tested by experience. These considerations suggest that not the verifiability but the falsifiability of a system is to be taken as a criterion of demarcation... It must be possible for an empirical or scientific system to be refuted by experience.
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[To] interpret Parmenides as a Kant before Kant ... this is exactly what we must do.
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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.
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Man, some modern philosophers tell us, is alienated from his world: he is a stranger and afraid in a world he never made. Perhaps he is yet so are animals, and even plants. They too were born, long ago, into a physico-chemical world, a world they never made.
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We do not choose political freedom because it promises us this or that. We choose it because it makes possible the only dignified form of human coexistence, the only form in which we can be fully responsible for ourselves. Whether we realize its possibilities depends on all kinds of things — and above all on ourselves.
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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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The future is always present, as a promise, a lure and a temptation.
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Those who promise us paradise on earth never produced anything but a hell.
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Better our hypotheses die for our errors than ourselves.
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The survival value of intelligence is that it allows us to extinct a bad idea, before the idea extincts us.
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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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There is no pure, disinterested, theory-free observation.
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