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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.

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
Everywhere
Proud
History
Science
Makes
Human
Humans
Speculative
Marvelous

More quotes by Karl Popper

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We must plan for freedom, and not only for security, if for no other reason than only freedom can make security more secure.
Karl Popper
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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 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.
Karl Popper
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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.
Karl Popper
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Now this principle of induction cannot be a purely logical truth like a tautology or an analytic statement. . . .
Karl Popper
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[To] interpret Parmenides as a Kant before Kant ... this is exactly what we must do.
Karl Popper
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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.
Karl Popper
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The future is always present, as a promise, a lure and a temptation.
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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True ignorance is not the absence of knowledge, but the refusal to acquire it.
Karl Popper
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We never know what we are talking about.
Karl Popper
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It is wrong to think that belief in freedom always leads to victory we must always be prepared for it to lead to defeat. If we choose freedom, then we must be prepared to perish along with it.
Karl Popper
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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.
Karl Popper
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There is no pure, disinterested, theory-free observation.
Karl Popper
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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
Karl Popper
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It is not intuitive ease I am after, but rather a point of view which is sufficiently definite to clear up some difficulties, and to be criticized in rational terms. (Bohr's complementarity cannot be so criticized, I fear it can only be accepted or denounced - perhaps as being ad hoc, or as being irrational, or as being hopelessly vague.)
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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Good tests kill flawed theories we remain alive to guess again.
Karl Popper
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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.
Karl Popper
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We do not know. We can only guess.
Karl Popper