Sci-fi fans are the most loyal fans on the planet - there's no doubt about it. I've done a few of those conventions, and these people will know the lines!
“It is characteristic that this should take place just when it is becoming more and more clear to all who think about the matter, that technically and economically we have left the territorial state behind us.”
“On two occasions I have been asked, 'Pray, Mr. Babbage, if you put into the machine wrong figures, will the right answers come out?' I am not able rightly to apprehend the kind of confusion of ideas that could provoke such a question.”