"Mathematics" & "Poetry" in the same sentence!

Thanks to Google for helping me find things -- for example, this quote from Moroccan writer Tahar Ben Jelloun :

     Poetry is a form of mathematics,
               a highly rigorous relationship with words.

And this quote from American poet Carl Sandburg (1872-1962):

     Poetry is a mystic, sensuous mathematics of fire, smoke-stacks, 
               waffles, pansies, people, and purple sunsets. 

For more about Jelloun, here is a Wikipedia link.  

This link leads to my 2012 posting of Sandburg's poem, "Number Man."