Austrian - Philosopher | July 28, 1902 - September 17, 1994
In so far as a scientific statement speaks about reality, it must be falsifiable; and in so far as it is not falsifiable, it does not speak about reality.
Karl Popper
SpeakRealityStatementMustFar
Science must begin with myths, and with the criticism of myths.
ScienceCriticismBeginMustMyths
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.
ProblemYouPossibleTheoryTake
There is no history of mankind, there are only many histories of all kinds of aspects of human life. And one of these is the history of political power. This is elevated into the history of the world.
LifePowerHistoryWorldPolitical
We have become makers of our fate when we have ceased to pose as its prophets.
FateBecomePoseProphetsOur
It is impossible to speak in such a way that you cannot be misunderstood.
ImpossibleSpeakYouWayCannot
No rational argument will have a rational effect on a man who does not want to adopt a rational attitude.
AttitudeManArgumentWantWillWho
We must plan for freedom, and not only for security, if for no other reason than that only freedom can make security secure.
FreedomPlanSecurityReasonMust
Piecemeal social engineering resembles physical engineering in regarding the ends as beyond the province of technology.
TechnologyEngineeringBeyondSocial
Our knowledge can only be finite, while our ignorance must necessarily be infinite.
KnowledgeIgnoranceInfiniteMust
Good tests kill flawed theories; we remain alive to guess again.
GoodAliveTestsAgainGuessFlawed
Those who promise us paradise on earth never produced anything but a hell.
HellParadiseEarthNeverAnything
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