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.
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.
Interpretation
What this quote means
Our past experiences shape how we perceive new people, often leading to misconceptions that must be overcome to understand them truly.
In this quote, Karl Popper highlights the role of our previous experiences and biases in shaping our perceptions of new individuals. He suggests that when we meet someone for the first time, we often unconsciously project our past prejudices onto them, which can create a distorted view of who they are. Understanding another person requires us to recognize these biases and actively work to see them for who they truly are, free from preconceived notions.
Themes
In practice
Example use cases
In a workshop on diversity, this quote can be used to illustrate the importance of looking beyond first impressions.
More from Karl Popper
All quotes →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.
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We'll just have to get along. That's what people do, you know? They just get along. And try to help each other.
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I hope that tomorrow we can all, wherever we are, join in expressing our grief at Diana's loss, and gratitude for her all-too-short life. It is a chance to show to the whole world the British nation united in grief and respect.