Karl Popper
Karl Popper
Sir Karl Raimund Popper CH FBA FRSwas an Austrian-British philosopher and professor. He is generally regarded as one of the greatest philosophers of science of the 20th century...
NationalityAustrian
ProfessionPhilosopher
Date of Birth28 July 1902
CountryAustria
Karl Popper quotes about
libertarian problem theory
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.
pet looks favors
If we are uncritical we shall always find what we want: we shall look for, and find, confirmations, and we shall look away from, and not see, whatever might be dangerous to our pet theories. In this way it is only too easy to obtain what appears to be overwhelming evidence in favor of a theory which, if approached critically, would have been refuted.
obstacles problem raises
Every solution of a problem raises new unsolved problems.
paradise-on-earth keeping-promises kept-promises
Those who promise us paradise on earth never produced anything but a hell.
hayek i-have-learned thinker
I have learned more from Hayek than from any other living thinker, except perhaps Alfred Tarski - but not even excepting Russell.
numbers history kind
There is no history of mankind, there is only an indefinite number of histories of all kinds of aspects of human life.
tests genuine theory
Every genuine test of a theory is an attempt to falsify it, or to refute it.
quests impossible precision
The quest for precision is analogous to the quest for certainty and both - precision and certainty are impossible to attain.