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Karl Popper

Quote of Karl Popper - We must plan for freedom, and...


Biography - Karl Popper:

Austrian and British philosopher and professor.
Born: 1902 - Died: 1994
Period:
20th century
Place of birth: Austria
Austria

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




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Quotes for: freedom


Quotes

Quotes about freedom:


People demand freedom of speech as a compensation for the freedom of thought which they seldom use.
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Article IV – Liberty consists of doing anything which does not harm others: thus, the exercise of the natural rights of each man has only those borders which assure other members of the society the enjoyment of these same rights. These borders can be determined only by the law.
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"Just living is not enough," said the butterfly, "one must have sunshine, freedom and a little flower."
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There is no easy walk to freedom anywhere.
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This is the highest wisdom that I own; freedom and life are earned by those alone who conquer them each day anew.
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Forgiveness is the key to action and freedom.
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Quotes

Karl Popper also said...


A theory which is not refutable by any conceivable event is non-scientific. Irrefutability is not a virtue of a theory (as people often think) but a vice.
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Our knowledge can only be finite, while our ignorance must necessarily be infinite.
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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.
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The history of science, like the history of all human ideas, is a history of irresponsible dreams, of obstinacy, and of error. But science is one of the very few human activities—perhaps the only one — in which errors are systematically criticized and fairly often, in time, corrected. This is why we can say that, in science, we often learn from our mistakes, and why we can speak clearly and sensibly about making progress there.
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No rational argument will have a rational effect on a man who does not want to adopt a rational attitude.
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Science may be described as the art of systematic over-simplification.
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