Once upon a midnight dreary, while I pondered, weak and weary,
Over many a quaint and curious volume of forgotten lore,
While I nodded, nearly napping, suddenly there came a tapping,
As of some one gently rapping, rapping at my chamber door. “
“'Tis some visitor,” I muttered, “tapping at my chamber door—
Only this, and nothing more
(The Raven by Edgar Allen Poe)