20 ordspråk av Karl Popper

Karl Popper

Karl Popper

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Försöken att förverkliga himlen på jorden skapar ett ständigt helvete.

Gud, Satan, Himmel och Helvete

Försöken att förverkliga himlen på jorden skapar alltid helveten.

Whenever a theory appears to you as the only possible one, take this as a sign that you have neither understood the theory nor the problem which it was intended to solve

Those who promise us paradise on earth never produced anything but a hell.

We must plan for freedom, and not only for security, if for no other reason than that only freedom can make security secure

It is impossible to speak in such a way that you cannot be misunderstood.

Science may be described as the art of systematic over-simplification.

No rational argument will have a rational effect on a man who does not want to adopt a rational attitude.

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

Science must begin with myths, and with the criticism of myths

Philosophers should consider the fact that the greatest happiness principle can easily be made an excuse for a benevolent dictatorship. We should replace it by a more modest and more realistic principle / the principle that the fight against avoidable misery should be a recognized aim of public policy, while the increase of happiness should be left, in the main, to private initiative.

Good tests kill flawed theories; we remain alive to guess again.

We must plan for freedom, and not only for security, if for no other reason than that only freedom can make security secure

Whenever a theory appears to you as the only possible one, take this as a sign that you have neither understood the theory nor the problem which it was intended to solve

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 against the onslaught of the intolerant, 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. We should claim that any movement preaching intolerance places itself outside the law, and we should consider incitement to intolerance and persecution as criminal, in the same way as we should consider incitement to murder, or to kidnapping, or to the revival of the slave trade, as criminal.

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