Karl Popper Quotes
Top 71 wise famous quotes and sayings by Karl Popper
Karl Popper Famous Quotes & Sayings
Discover top inspirational quotes from Karl Popper on Wise Famous Quotes.
No matter how many instances of white swans we may have observed, this does not justify the conclusion that all swans are white.
I personally call the type of government which can be removed without violence 'democracy,' and the other, 'tyranny.'.
Genuine philosophical problems are always rooted outside philosophy and they die if these roots decay.
It is not possible to write clearly enough to avoid being misrepresented by people who are sufficiently determined to do so.
No number of sightings of white swans can prove the theory that all swans are white. The sighting of just one black one may disprove it.
The question is not how to get good people to rule; THE QUESTION IS: HOW TO STOP THE POWERFUL from doing as much damage as they can to us.
Now this principle of induction cannot be a purely logical truth like a tautology or an analytic statement ...
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
I have spoken to Einstein and he admitted to me that his theory was in fact no different from the one of Parmenides.
It is wrong to ask who will rule. The ability to vote a bad government out of office is enough. That is democracy.
The moral decisions of others should be treated with respect, as long as such decisions do not conflict with the principle of tolerance.
There is no reason to believe that a definition necessarily determines the ontological status of the term defined.)
Science is perhaps the only human activity in which errors are systematically criticized and, in time, corrected.
Piecemeal social engineering resembles physical engineering in regarding the ends as beyond the province of technology.
No rational argument will have a rational effect on a man who does not want to adopt a rational attitude.
Our greatest troubles spring from something that is as admirable as it is dangerous ... our impatience to better the lot of our fellows.
The initial stage, the act of conceiving or inventing a theory, seems to me neither to call for logical analysis nor to be susceptible of it.
The history of science is everywhere speculative. It is a marvelous hiatory. It makes you proud to be a human being.
No particular theory may ever be regarded as absolutely certain ... No scientific theory is sacrosanct ...
While differing widely in the various little bits we know, in our infinite ignorance we are all equal.
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.
Our belief in any particular natural law cannot have a safer basis than our unsuccessful critical attempts to refute it.
The most we can say of democracy or freedom is that they give our personal abilities a little more influence on our well-being.
I have come to the conclusion that Darwinism is not a testable scientific theory, but a metaphysical research programme ...
We must plan for freedom, and not only for security, if for no other reason than only freedom can make security more secure.
We hate the very idea that our own ideas may be mistaken, so we cling dogmatically to our conjectures.
I have learned more from Hayek than from any other living thinker, except perhaps Alfred Tarski - but not even excepting Russell.
It seems to me certain that more people are killed out of righteous stupidity than out of wickedness.
You cannot have a rational discussion with a man who prefers shooting you to being convinced by you.
If you know that things are bound to happen whatever you do, then you may feel free to give up the fight against them.
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.