Story: Andrew Carnegie, the famous steel magnate of the 19th Century had a sister who complained that her sons were always asking for money but never replied to her letters. So Carnegie bet her £100 that he could get them to reply within a week.
So he sat down and wrote to each of his nephews asking how they were. He ended both letters by saying that he was enclosing £50 for each of them.
He received a letter back from each within the week giving Carnegie their news and
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