One could write a history of science in reverse by assembling the solemn pronouncements of highest authority about what could not be done and could never happen.
Robert A. HeinleinDeath is the lot of us all, and the only way that the human race has ever conquered death is by treating it with contempt. By living every golden minute as if one had all Eternity.
Robert A. HeinleinNever crowd youngsters about their private affairs - sex especially. When they are growing up, they are nerve ends all over, and resent (quite properly) any invasion of their privacy. Oh, sure, they'll make mistakes - but that's their business, not yours. (You made your own mistakes, did you not?)
Robert A. HeinleinLibrary Science is the key to all science, just as mathematics is its language - and civilization will rise or fall, depending on how well librarians do their jobs.
Robert A. HeinleinIf God existed (a question concerning which Jubal maintained a meticulous intellectual neutrality) and if He desired to be worshiped (a proposition which Jubal found inherently improbable but conceivably possible in the dim light of his own ignorance), then (stipulating affirmatively both the above) it nevertheless seemed wildly unlikely to Jubal to the point of reductio ad absurdum that a God potent to shape galaxies would be titillated and swayed by the whoop-te-do nonsense the Fosterites offered Him as "worship.
Robert A. Heinlein