Instead of the greatest happiness for the greatest number, one should demand, more modestly, the least amount of avoidable suffering for all.
KARL POPPERThose who promise us paradise on earth never produced anything but hell.
More Karl Popper Quotes
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The game of science is, in principle, without end.
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We must regard all laws or theories as hypothetical or conjectural; that is, as guesses.
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The way of science is paved with discarded theories that were once declared self-evident.
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All life is problem-solving.
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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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He who decides one day that scientific statements do not call for any further test and that they can be regarded as finally verified retires from the game.
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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.
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History has no meaning.
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The aim of argument, or of discussion, should not be victory but progress.
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The future depends on ourselves, and we do not depend on any historical necessity.
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The conspiracy theory of society, comes from abandoning God and then asking: “Who is in his place?”
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A theory that explains everything, explains nothing.
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In my view, aiming at simplicity and lucidity is a moral duty of all intellectuals: lack of clarity is a sin, and pretentiousness is a crime.
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Our knowledge can only be finite, while our ignorance must necessarily be infinite.
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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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Theology, I still think, is due to a lack of faith.
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What we need and what we want is to moralize politics, not to politicize morals.
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“We don’t know anything” and believed that this was the most important philosophical truth.
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True ignorance is not the absence of knowledge, but the refusal to acquire it.
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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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While differing widely in the various little bits we know, in our infinite ignorance we are all equal.
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Science is most significant as one of the greatest spiritual adventures that man has yet known.
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If you can’t say it simply and clearly, keep quiet, and keep working on it till you can.
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And it implies that if we respect truth, we must search for it by persistently searching for our errors: by indefatigable rational criticism, and self-criticism.
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I would rather find a single causal law than be the king of Persia!
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We must plan for freedom, and not only for security, if for no other reason than only freedom can make security more secure.
KARL POPPER