'On two occasions I have been asked,--"Pray, Mr. Babbage, if you put into the machine wrong figures, will the right answers come out?" In one case a member of the Upper, and in the other a member of the Lower, House put this question. I am not able rightly to apprehend the kind of confusion of ideas that could provoke such a question.'
    -- Chapter 5, Passages from the Life of a Philosopher,
      Charles Babbage, 1864. ISBN 1-85196-040-6