But the raven, sitting lonely on the placid bust, spoke only,
That one word, as if his soul in that one word he did outpour.
Nothing further then he uttered—not a feather then he fluttered—
Till I scarcely more than muttered "Other friends have flown before—
On the morrow he will leave me, as my hopes have flown before."
Then the bird said, "Nevermore."
~ Edgar Allan Poe (1809-1849), from "The Raven"