There is some consolation in the fact that, even though your dreams don't come true, neither do your nightmares.
Richard ArmourShakespeare, who never could think up a plot by himself, found this one [Macbeth] in Holinshed's Chronicles, changing it just enough so that no one would recognize the source. He didn't count on the resourcefulness of modern scholars, who have to discover things like this to become associate professors.
Richard Armour