Definitions.... are never really needed, and rarely of any use
Interpretation
Definitions can be unhelpful and unnecessary.
Karl Popper suggests that definitions often do not contribute meaningfully to our understanding, implying that rigid categories can limit our perception of concepts. Instead, he advocates for a more fluid approach to knowledge where the nuances of ideas are recognized over overly simplistic definitions.
In practice
In a philosophy class discussion, one might use this quote to emphasize the limitations of strict definitions.
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.
In what terms should we think of these beings, nonhuman yet possessing so very many human-like characteristics? How should we treat them? Surely we should treat them with the same consideration and kindness as we show to other humans; and as we recognize human rights, so too should we recognize the rights of the great apes? Yes.
She knew that the horse, born to serve nobly, had waited in vain for someone noble to serve. His spirit knew that nobility had gone out of men.
People can only live fully by helping others to live. When you give life to friends you truly live. Cultures can only realize their further richness by honoring other traditions. And only by respecting natural life can humanity continue to exist.
A particularly beautiful woman is a source of terror. As a rule, a beautiful woman is a terrible disappointment.
Silence is the nest and music is the bird. The bird leaves the nest early in the morning and returns to the nest in the evening. Similarly, in the spiritual world, divine music comes from the inmost soul of Silence.
Space ails us moderns: we are sick with space.
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