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Those who promise us paradise on earth never produced anything but a hell.
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
Paradise
Promise
Hell
Earth
Anything
Never
Produced
More quotes by Karl Popper
Good tests kill flawed theories we remain alive to guess again.
Karl Popper
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
The attempt to make heaven on earth invariably produces hell.
Karl Popper
We do not know. We can only guess.
Karl Popper
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
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.
Karl Popper
. . . it seems to me certain that more people are killed out of righteous stupidity than out of wickedness.
Karl Popper
We have become makers of our fate when we have ceased to pose as its prophets.
Karl Popper
Criticism of my alleged views was widespread and highly successful. I have yet to meet a criticism of my views.
Karl Popper
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
Science must begin with myths, and with the criticism of myths.
Karl Popper
The survival value of intelligence is that it allows us to extinct a bad idea, before the idea extincts us.
Karl Popper
There is no pure, disinterested, theory-free observation.
Karl Popper
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
Every genuine test of a theory is an attempt to falsify it, or to refute it.
Karl Popper
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
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
Karl Popper
no matter how many instances of white swans we may have observed, this does not justify the conclusion that all swans are white.
Karl Popper
What really makes science grow is new ideas, including false ideas.
Karl Popper
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