For a gorgeous tale of a May-December relationship (and a boatload of cute couple quotes), please see Steve Martin's "Shopgirl."

"How is it possible, he thinks, to miss a woman whom he kept at a distance, so that when she was gone, he would not miss her?" --Steve Martin

Mike Birbiglia speaks for anyone who's ever created a wedding registry.

"Love makes people do crazy things like kill other people or shop at Crate & Barrel." --Mike Birbiglia

British Prime Minister Winston Churchill wrote some of the sweetest letters to his wife, Clementine.

"I always feel so overwhelmingly in your debt, if there can be accounts in love." --Winston Churchill

Said like a true artist.

"When love is not madness, it is not love." --Pedro Calderón de la Barca

Kudos to the late Joan Rivers for saying the brutally honest (but kinda sweet) things we've all thought.

"My husband wanted to be cremated. I told him I'd scatter his ashes at Neiman Marcus -- that way, I'd visit him every day." --Joan Rivers