Sometimes good lines fit so well into their poems that their individual merits go unrecognized. And then, taken out of context, they can lead lives of their own. Here is a start for a collection of such lines.
From Poets.org here are two lines from "Ceriserie" by Joshua Clover:
Mathematics: Everyone rolling dice and flinging Fibonacci, going to the opera, counting everything.
Fire: The number between four and five.
Found through Poetry.about.com at a link that I can no longer verify, words said to be from Lana Turner:
I wear a cross around my neck because I love right angles.
Found in the October 13,2014 issue of The New Yorker, in Heather Green's poem, "I Was Reading Up On My Hellenic Math":
I've never yet let go of zero . . .
There will be more.