To give a causal explanation of an event means to deduce a statement which describes it, using as premises of the deduction one or more universal laws, together with certain singular statements, the initial conditions ... We have thus two different kinds of statement, both of which are necessary ingredients of a complete causal explanation.
Interpretation
A complete causal explanation requires both universal laws and specific conditions.
Karl Popper's quote emphasizes the importance of combining general laws with particular circumstances to fully explain an event. It illustrates the idea that understanding causality involves not just the rules that govern phenomena, but also the specific situational factors that lead to a particular outcome.
In practice
During a lecture on scientific methodology, this quote could illustrate the relationship between general theories and specific instances.
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.
The death of a language. The word has the same kind of reluctant resonance as it has when we talk about the death of a person. And indeed, that's how it should be. For that's how it is. A language dies only when the last person who speaks it dies.
Art thou angry with him whose armpits stink? Art thou angry with him whose mouth smells foul?
Life rises out of death, death rises out of life; in being opposite they yearn to each other, they give birth to each other and are forever reborn. And with them, all is reborn, the flower of the apple tree, the light of the stars. In life is death. In death is rebirth. What then is life without death? Life unchanging, everlasting, eternal?-What is it but death-death without rebirth?
When there is hallucination, there is the truth, by recognising it as hallucination. Where there is suffering, there is peace and bliss, by letting go and experiencing it for numberless suffering sentient beings. Always think of how others are kind and precious Treat them as you would like to be treated.
I support a guaranteed basic income. I think we should take care of sick people. I believe women can make their own choices and that the government is at its best when it's building bridges instead of bombs.
It takes a great deal of character strength to apologize quickly out of one's heart rather than out of pity. A person must possess himself and have a deep sense of security in fundamental principles and values in order to genuinely apologize.
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