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Letter "S" » Simon Newcomb Quotes
«Aerial flight is one of that class of problems with which men will never have to cope»
«Flight by machines heavier than air is unpractical and insignificant, if not utterly impossible.»
«We are probably nearing the limit of all we can know about astronomy.»
«The demonstration that no possible combination of known substances, known forms of machinery and known forms of force, can be united in a practical machine by which men shall fly along distances through the air, seems to the writer as complete as it is possible for the demonstration to be.»

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