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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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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
Must
Make
Ethics
Secure
Plan
Plans
Security
Freedom
Reason

More quotes by Karl Popper

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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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Science may be described as the art of systematic over-simplification.
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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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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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Our knowledge can only be finite, while our ignorance must necessarily be infinite.
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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 seems to me certain that more people are killed out of righteous stupidity than out of wickedness.
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While differing widely in the various little bits we know, in our infinite ignorance we are all equal.
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Criticism of my alleged views was widespread and highly successful. I have yet to meet a criticism of my views.
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[To] interpret Parmenides as a Kant before Kant ... this is exactly what we must do.
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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.
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There is no history, only histories.
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A theory that explains everything, explains nothing
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True ignorance is not the absence of knowledge, but the refusal to acquire it.
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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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.
Karl Popper
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To give a causal explanation of an event means to deduce a statement which describes it, using as premises of the deduction one or more universal laws, together with certain singular statements, the initial conditions ... We have thus two different kinds of statement, both of which are necessary ingredients of a complete causal explanation.
Karl Popper
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Good tests kill flawed theories we remain alive to guess again.
Karl Popper
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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.
Karl Popper
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Those who promise us paradise on earth never produced anything but a hell.
Karl Popper