It is heartening to be able to end a textbook that has no prerequisites with a problem that has not yet been solved.
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Last words, referring to the Skolem's paradoxIrving Copi
The problem of establishing a perfect civic constitution is dependent upon the problem of a lawful external relation among states and cannot be solved without a solution of the latter problem.
Immanuel Kant
I tried to persuade him that he was too logical, a concept which he could neither accept nor understand...I do not recall meeting anyone else with a mind that had such a power of acquiring knowledge. At one stage when Enoch was detailed to become an expert on town and country planning, he acquired the standard textbook and read it from page to page, as an ordinary mortal would read a novel. Within a matter of weeks he had fully grasped both the principles of the problem and the details of the legal situation. Within a matter of a few months he was writing to the author of the textbook, pointing out the errors that he had made.
Enoch Powell
The young always have the same problem — how to rebel and conform at the same time. They have now solved this problem by defying their elders and copying each other.
Quentin Crisp
To politicians, solved problems represent a dire threat — of unemployment and poverty. That's why no problem ever tackled by the government has ever been solved. What they want is lots of problems they can promise to solve, so that we'll keep electing them — or letting them keep their jobs in a bureaucracy metastasizing like cancer.
L. Neil Smith
The major cause [of the software crisis] is that the machines have become several orders of magnitude more powerful! To put it quite bluntly: as long as there were no machines, programming was no problem at all; when we had a few weak computers, programming became a mild problem, and now we have gigantic computers, programming has become an equally gigantic problem. In this sense the electronic industry has not solved a single problem, it has only created them, it has created the problem of using its products.
Edsger W. Dijkstra
Copi, Irving
Copland, Aaron
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