(from Caterina.net)

In those days I seemed to have had two muses: the essential, hysterical, genuine one, who tortured me with elusive snatches of imagery and wrung her hands over my inability to appropriate the magic and madness offered me; and her apprentice, her palette girl and stand-in, a little logician, who stuffed the torn gaps left by her mistress with explanatory or meter-mending fillers which became more and more numerous the further I moved away from the initial, evanescent, savage perfection.

--Vladimir Nabokov