The war of ideas is a Greek invention. It is one of the most important inventions ever made. Indeed, the possibility of fighting with with words and ideas instead of fighting with swords is the very basis of our civilization, and especially of all its legal and parliamentary institutions.
Interpretation
Ideas and dialogue are more powerful than violence in shaping civilization.
In this quote, Karl Popper emphasizes the significance of the 'war of ideas' as a foundational aspect of civilization. He suggests that the ability to engage in intellectual discourse and debate, rather than resorting to violence, is what has allowed societies to develop legal structures and democratic institutions, ultimately fostering a more civilized world.
In practice
In a speech on democracy, one might use this quote to advocate for peaceful discourse.
The growth of our knowledge is the result of a process closely resembling what Darwin called 'natural selection'; that is, the natural selection of hypotheses: our knowledge consists, at every moment, of those hypotheses which have shown their (comparative) fitness by surviving so far in their struggle for existence, a competitive struggle which eliminates those hypotheses which are unfit.
If you can't say it simply and clearly, keep quiet, and keep working on it till you can.
No particular theory may ever be regarded as absolutely certain.... No scientific theory is sacrosanct.
The belief in a political Utopia is especially dangerous. This is possibly connected with the fact that the search for a better world, like the investigation of our environment, is (if I am correct) one of the oldest and most important of all the instincts.
A rationalist is simply someone for whom it is more important to learn than to be proved right; someone who is willing to learn from others - not by simply taking over another's opinions, but by gladly allowing others to criticize his ideas and by gladly criticizing the ideas of others
Thus science must begin with myths, and with the criticism of myths; neither with the collection of observations, nor with the invention of experiments, but with the critical discussion of myths, and of magical techniques and practices.
I am the Bad Wolf. I create myself. I take the words. I scatter them... in time, and space. A message to lead myself here.
Itβs always about, somehow, finding a part of myself that is relevant, and then turning the volume up on that particular part. So, I am all of the characters I've ever played, and I am none of them at the same time.
I am learning to see. I don't know why it is, but everything enters me more deeply and doesn't stop where it once used to. I have an interior that I never knew of... What's the use of telling someone that I am changing? If I'm changing, I am no longer who I was; and if I am something else, it's obvious that I have no acquaintances. And I can't possibly write to strangers.
I've already become a mastodon in print - I don't see a consciousness for my kind of journalism.
A man of clear ideas errs grievously if he imagines that whatever is seen confusedly does not exist; it belongs to him, when he meets with such a thing, to dispel the midst, and fix the outlines of the vague form which is looming through it.
I and my public understand each other very well: it does not hear what I say, and I don't say what it wants to hear.
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