No rational argument will have a rational effect on a man who does not want to adopt a rational attitude.
KARL POPPERThe future depends on ourselves, and we do not depend on any historical necessity.
More Karl Popper Quotes
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If our civilization is to survive, we must break with the habit of deference to great men.
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What we need and what we want is to moralize politics, not to politicize morals.
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Instead of the greatest happiness for the greatest number, one should demand, more modestly, the least amount of avoidable suffering for all.
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While differing widely in the various little bits we know, in our infinite ignorance we are all equal.
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The wise man belongs to all countries, for the home of a great soul is the whole world.
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“We don’t know anything” and believed that this was the most important philosophical truth.
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The method of learning by trial and error – of learning from our mistakes – seems to be fundamentally the same whether it is practiced by lower or by higher animals, by chimpanzees, or by men of science.
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Those who promise us paradise on earth never produced anything but hell.
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I would rather find a single causal law than be the king of Persia!
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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.
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History has no meaning.
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The simple truth is that truth is hard to come by, and that once found may easily be lost again.
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Theories are nets cast to catch what we call ‘the world’: to rationalize, to explain, and to master it. We endeavor to make the mesh ever finer and finer.
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No book can ever be finished. While working on it we learn just enough to find it immature the moment we turn away from it
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Always remember that it is impossible to speak in such a way that you cannot be misunderstood: there will always be some who misunderstand you.
KARL POPPER