13
" The expressionist view is that our talents, our gifts, and perhaps our upbringing, and thus "our whole personality", determine what we do. The result is good or bad, according to whether or not we are gifted and interesting personalities.
In opposition to this I suggest that everything depends upon the give-and-take between ourselves and our task, our work, our problems, our world 3; upon the repercussions upon us of this world; upon the feedback, which can be amplified by our criticism of what we've done. It's through the attempt to see objectively the work we have done -that's to see it critically- and to do it better, through the interaction between our actions and their objective results, that we can transcend our talents, and ourselves.
As with our children, so with our theories, and ultimately with all the work we do: our products become independent of their makers. We may gain more knowledge from our children or from our theories than we ever imparted to them. This is how we can lift ourselves out of the morass of our ignorance; and we can all contribute to world 3.
If I am right in my conjecture that we grow, and become ourselves, only in interaction with world 3, then the fact that we can all contribute to this world, if only a little, can give comfort to everyone; and especially to one who feels that in struggling with ideas he has found more happiness than he could ever deserve. "
― Karl Popper , Unended Quest: An Intellectual Autobiography
14
" I have in lectures often described this interesting situation by saying: we never know what we are talking about. For when we propose a theory, or try to understand a theory, we also propose, or try to understand, its logical implications; that is, all those statements which follow from it. But this, as we have just seen, is a hopeless task : there is an infinity of unforeseeable nontrivial statements belonging to the informative content of any theory, and an exactly corresponding infinity of statements belonging to its logical content. We can therefore never know or understand all the implications of any theory, or its full significance
Chapter 7 "
― Karl Popper , Unended Quest: An Intellectual Autobiography
18
" Although I have known sorrow and great sadness, as is everybody's lot, I don't think that I have had an unhappy hour as a philosopher since we returned to England. I have worked hard, and I have often got deep into insoluble difficulties. But I have been most happy in finding new problems, in wrestling with them, and in making some progress. This, or so I feel, is the best life. It seems to me infinitely better than the life of mere contemplation (to say nothing of divine self-contemplation) which Aristotle recommends as the best. It is a completely restless life, but it is highly self-contained/autark in Plato's sense, although no life, of course, can be fully autark. "
― Karl Popper , Unended Quest: An Intellectual Autobiography
20
" And yet I believe I have taken the theory almost at its best— almost in its most testable form. One might say that it “almost predicts” a great variety of forms of life.283 In other fields, its predictive or explanatory power is still more disappointing. Take “adaptation”. At first sight natural selection appears to explain it, and in a way it does; but hardly in a scientific way. To say that a species now living is adapted to its environment is, in fact, almost tautological. Indeed we use the terms “adaptation” and “selection” in such a way that we can say that, if the species were not adapted, it would have been eliminated by natural selection. Similarly, if a species has been eliminated it must have been ill adapted to the conditions. Adaptation or fitness is defined by modern evolutionists as survival value, and can be measured by actual success in survival: there is hardly any possibility of testing a theory as feeble as this.
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Now to the degree that Darwinism creates the same impression, it is not so very much better than the theistic view of adaptation; it is, therefore important to show that Darwinism is not a scientific theory, but metaphysical. But its value for science as a metaphysical research programme is very great, especially if it is admitted that it may be criticized, and improved upon. "
― Karl Popper , Unended Quest: An Intellectual Autobiography
