In the wake of the BRIDGES math-art conference at Towson University last week I also want to mention the lively blog posting about BRIDGES by Justin Lanier at Math Munch.
And here is a line from a poem by one of my favorite poets, often mathematical in his themes, Jorge Luis Borges (1899-1986); the complete poem is available here, from The New Yorker (July 6 and 13, 2009).
. . . In that circular cell, a man who looks like me is writing in letters I cannot understand a long poem about a man who in another circular cell is writing a poem about a man who is in another circular cell . . .
Translation from the Spanish is by Suzanne Jill Levine. Please visit this The New Yorker link to read the entire poem.