"Sometimes it is more difficult to formulate the criterion for a problem than to state the question itself."
— Robert E. Machol

January 1, 1970

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Academics from the United StatesNon-fiction authors from the United StatesPeople from New York CityAerospace engineers from the United StatesSystems engineers
Original Language: English

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https://en.wikiquote.org/wiki/Robert_E._Machol

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