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Karl Popper Quotes
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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 Quotes)
Science must begin with myths, and with the criticism of myths (Karl Popper Quotes)
Good tests kill flawed theories; we remain alive to guess again (Karl Popper Quotes)
All things living are in search of a better world (Karl Popper Quotes)
Those who promise us paradise on earth never produced anything but a hell (Karl Popper Quotes)
True ignorance is not the absence of knowledge, but the refusal to acquire it (Karl Popper Quotes)
No particular theory may ever be regarded as absolutely certain... No scientific theory is sacrosanct (Karl Popper Quotes)
It is impossible to speak in such a way that you cannot be misunderstood (Karl Popper Quotes)
Our knowledge can only be finite, while our ignorance must necessarily be infinite (Karl Popper Quotes)
Genuine philosophical problems are always rooted outside philosophy and they die if these roots decay (Karl Popper Quotes)
It must be possible for an empirical system to be refuted by experience (Karl Popper Quotes)
Darwinism is not a testable scientific theory, but a metaphysical research program (Karl Popper Quotes)
Instead of encouraging the student to devote himself to his studies for the sake of studying, instead of encouraging in him a real love for his subject and for inquiry, he is encouraged to study for the sake of his personal career; he is led to acquire only such knowledge as is serviceable in getting him over the hurdles which he must clear for the sake of his advancement (Karl Popper Quotes)
The metaphysical doctrine of determinism simply asserts that all events in this world are fixed, or unalterable, or predetermined. It does not assert that they are known to anybody, or predictable by scientific means. But it asserts that the future is as little changeable as is the past. Everybody knows what we mean when we say that the past cannot be changed. It is in precisely the same sense that the future cannot be changed, according to metaphysical determinism (Karl Popper Quotes)
Understanding a theory has, indeed, much in common with understanding a human personality. We may know or understand a man’s system of dispositions pretty well; that is to say, we may be able to predict how he would act in a number of different situations. But since there are infinitely many possible situations, of infinite variety, a full understanding of a man’s dispositions does not seem to be possible (Karl Popper Quotes)
When we enter a new situation in life and are confronted by a new person, we bring with us the prejudices of the past and our previous experiences of people. These prejudices we project upon the new person. Indeed, getting to know a person is largely a matter of withdrawing projections; of dispelling the smoke screen of what we imagine he is like and replacing it with the reality of what he is actually like (Karl Popper Quotes)
A rationalist, as I use the word, is a man who attempts to reach decisions by argument and perhaps, in certain cases, by compromise, rather than by violence. He is a man who would rather be unsuccessful in convincing another man by argument than successful in crushing him by force, by intimidation and threats, or even by persuasive propaganda (Karl Popper Quotes)
For myself, I am interested in science and in philosophy only because I want to learn something about the riddle of the world in which we live, and the riddle of man’s knowledge of that world. And I believe that only a revival of interest in these riddles can save the sciences and philosophy from an obscurantist faith in the expert’s special skill and in his personal knowledge and authority (Karl Popper Quotes)
Unlimited tolerance must lead to the disappearance of tolerance. If we extend unlimited tolerance even to those who are intolerant, if we are not prepared to defend a tolerant society... then the tolerant will be destroyed, and tolerance with them... We should therefore claim, in the name of tolerance, the right not to tolerate the intolerant (Karl Popper Quotes)
Our aim as scientists is objective truth; more truth, more interesting truth, more intelligible truth. We cannot reasonably aim at certainty. Once we realize that human knowledge is fallible, we realize also that we can never be completely certain that we have not made a mistake (Karl Popper Quotes)
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 Quotes)
It is part of my thesis that all our knowledge grows only through the correcting of our mistakes (Karl Popper Quotes)
It is the rule which says that the other rules of scientific procedure must be designed in such a way that they do not protect any statement in science against falsification (Karl Popper Quotes)
No rational argument will have a rational effect on a man who does not want to adopt a rational attitude (Karl Popper Quotes)
We hate the very idea that our own ideas may be mistaken, so we cling dogmatically to our conjectures (Karl Popper Quotes)
Serious rational criticism is so rare that it should be encouraged. Being too ready to defend oneself is more dangerous than being too ready to admit a mistake (Karl Popper Quotes)
The survival value of intelligence is that it allows us to extinct a bad idea, before the idea extincts us (Karl Popper Quotes)
Simple statements are to be prized more highly than less simple ones because they tell us more; because their empirical content is greater; and because they are better testable (Karl Popper Quotes)
The use of violence is justified only under a tyranny which makes reforms without violence impossible, and should have only one aim, that is, to bring about a state of affairs which makes reforms without violence possible (Karl Popper Quotes)
The moral decisions of others should be treated with respect, as long as such decisions do not conflict with the principle of tolerance (Karl Popper Quotes)