Lugar, p. 20

"The Analytical Engine has no pretensions whatever to originate anything. It can do whatever we know how to order it to perform. It can follow analysis; but it has no power of anticipating any analytical relations or truths."
Ada Byron, Countess of Lovelace

"I'm sorry, Dave; I can't let you do that."
HAL 9000 in 2001: A Space Odyssey by Arthur Clarke