I know all about the Sphinx-- 
I know even what she thinks, 
Staring with her stony eyes 
Up forever at the skies. 
 
For last night I dreamed that she 
Told me all the mystery-- 
Why for aeons mute she sat--: 
She was just cut out for that!
James Whitcomb Riley
http://www.poemhunter.com/poem/the-sphinx-5/