Contrary to the outstanding work of art, outstanding theory is susceptible to improvements. — Karl Popper Copy Share Image
Every genuine test of a theory is an attempt to falsify it, or to refute it. — Karl Popper Copy Share Image
Historically speaking all - or very nearly all - scientific theories originate from myths. — Karl Popper Copy Share Image
The initial stage, the act of conceiving or inventing a theory, seems to me neither to call for logical analysis nor to… — Karl Popper Copy Share Image
There will be well-testable theories, hardly testable theories, and non-testable theories. Those which are non-testable are of no interest to empirical scientists.… — Karl Popper Copy Share Image
I have come to the conclusion that Darwinism is not a testable scientific theory, but a metaphysical research programme... — Karl Popper Copy Share Image
No particular theory may ever be regarded as absolutely certain… No scientific theory is sacrosanct... — Karl Popper Copy Share Image
The difference between the amoeba and Einstein is that, although both make use of the method of trial and error elimination, the… — Karl Popper Copy Share Image
The scientific tradition is distinguished from the pre-scientific tradition by having two layers. Like the latter, it passes on its theories; but… — Karl Popper Copy Share Image
Whenever a theory appears to you as the only possible one, take this as a sign that you have neither understood the… — Karl Popper Copy Share Image
A theory which is not refutable by any conceivable event is non-scientific. Irrefutability is not a virtue of a theory (as people… — Karl Popper Copy Share Image
But some of these theories are so bold that they can clash with reality: they are the testable theories of science. And… — Karl Popper Copy Share Image
The old scientific ideal of episteme - of absolutely certain, demonstrable knowledge - has proved to be an idol. The demand for… — Karl Popper Copy Share Image
The method of science depends on our attempts to describe the world with simple theories: theories that are complex may become untestable,… — Karl Popper Copy Share Image
Propose theories which can be criticized. Think about possible decisive falsifying experiments-crucial experiments. But do not give up your theories too easily-not,… — Karl Popper Copy Share Image
If we are uncritical we shall always find what we want: we shall look for, and find, confirmations, and we shall look… — Karl Popper Copy Share Image
The Conspiracy Theory of Society... [is] a typical result of the secularization of a religious superstition. The belief in the Homeric gods… — Karl Popper Copy Share Image
Astrologers were greatly impressed, and misled, by what they believed to be confirming evidence-so much so that they were quite unimpressed by… — Karl Popper Copy Share Image
Science does not rest upon solid bedrock. The bold structure of its theories rises, as it were, above a swamp. It is… — Karl Popper Copy Share Image
It is clear that everybody interested in science must be interested in world 3 objects. A physical scientist, to start with, may… — Karl Popper Copy Share Image
Understanding a theory has, indeed, much in common with understanding a human personality. We may know or understand a man's system of… — Karl Popper Copy Share Image
Almost everyone... seems to be quite sure that the differences between the methodologies of history and of the natural sciences are vast.… — Karl Popper Copy Share Image
It is easy to obtain confirmations, or verifications, for nearly every theory-if we look for confirmations. Confirmations should count only if they… — Karl Popper Copy Share Image
In point of fact, no conclusive disproof of a theory can ever be produced; for it is always possible to say that… — Karl Popper Copy Share Image
The conspiracy theory of society... comes from abandoning god and then asking: "Who is in his place" — Karl Popper Copy Share Image
No number of sightings of white swans can prove the theory that all swans are white. The sighting of just one black… — Karl Popper Copy Share Image
I have spoken to Einstein and he admitted to me that his theory was in fact no different from the one of… — Karl Popper Copy Share Image
Evolution is not a fact. Evolution doesn't even qualify as a theory or as a hypothesis. It is a metaphysical research program,… — Karl Popper Copy Share Image
Science does not rest upon solid bedrock. The bold structure of its theories rises, as it were, above a swamp. It is… — Karl Popper Copy Share Image
Why do I think that we, the intellectuals, are able to help? Simply because we, the intellectuals, have done the most terrible… — Karl Popper Copy Share Image
Science is not a system of certain, or -established, statements; nor is it a system which steadily advances towards a state of finality... And… — Karl Popper Copy Share
“As indicated by our example, methodological nominalism is nowadays fairly generally accepted in the natural sciences. The problems of the social sciences, on the… — Karl Popper Copy Share
Science is perhaps the only human activity in which errors are systematically criticized and, in time, corrected. — Karl Popper Copy Share
A system is empirical or scientific only if it is capable of being tested by experience. These considerations suggest that not the verifiability but… — Karl Popper Copy Share
Bold ideas, unjustified anticipations, and speculative thought, are our only means for interpreting nature: our only organon, our only instrument, for grasping her. And… — Karl Popper Copy Share
[The aim of science is] to explain what so far has taken to be an explicans, such as a law of nature. The task… — Karl Popper Copy Share
There can be no ultimate statements science: there can be no statements in science which can not be tested, and therefore none which cannot… — Karl Popper Copy Share
Evolution is not a fact. Evolution doesn't even qualify as a theory or as a hypothesis. It is a metaphysical research program, and it… — Karl Popper Copy Share
I am opposed to looking upon logic as a kind of game. ... One might think that it is a matter of choice or… — Karl Popper Copy Share
The history of science, like the history of all human ideas, is a history of irresponsible dreams, of obstinacy, and of error. — Karl Popper Copy Share
We have the right not to tolerate the intolerant. We should tolerate even them whenever we can do so without running a great risk;… — Karl Popper Copy Share
“Every time we proceed to explain some conjectural law or theory by a new conjectural theory of a higher degree of universality, we are… — Karl Popper Copy Share
![“The Conspiracy Theory of Society... [is] a typical result of the secularization of a religious superstition. The belief in the Homeric gods whose conspiracies explain the history of the Trojan War is gone. The gods are abandoned. But their place is filled by powerful men or groups - sinister…” quote by Karl Popper](https://sms4smile.com/quotes/i/b44/karl-popper-2167_abandoned_the-conspiracy-theory-of-society-is-a-ty_949385.jpg)
