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Ignorance is not a simple lack of knowledge but an active aversion to knowledge, the refusal to know, issuing from cowardice, pride, or laziness of mind.

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
Cowardice
Lack
Active
Ignorance
Pride
Issuing
Knowledge
Aversion
Simple
Refusal
Mind
Laziness

More quotes by Karl Popper

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We have become makers of our fate when we have ceased to pose as its prophets.
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We do not know. We can only guess.
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I have insisted that we must be tolerant. But I also believe that this tolerance has its limits. We must not trust those anti-humanitarian religions which not only preach destruction but act accordingly. For if we tolerate them, then we become ourselves responsible for for their deeds.
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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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Those who promise us paradise on earth never produced anything but a hell.
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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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Now this principle of induction cannot be a purely logical truth like a tautology or an analytic statement. . . .
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Every genuine test of a theory is an attempt to falsify it, or to refute it.
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The future is always present, as a promise, a lure and a temptation.
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There is no history, only histories.
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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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It is part of my thesis that all our knowledge grows only through the correcting of our mistakes.
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The attempt to make heaven on earth invariably produces hell.
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Better our hypotheses die for our errors than ourselves.
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But it is certainly not possible to insist on one hand that the formalism is complete and to insist on the other hand that its application to 'the actual' actually demands a step which cannot be derived from it.
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
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But some of these theories are so bold that they can clash with reality: they are the testable theories of science. And when they clash, then we know that there is a reality something that can inform us that our ideas are mistaken.
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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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Criticism of my alleged views was widespread and highly successful. I have yet to meet a criticism of my views.
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.
Karl Popper