Within a Sky Full of Earth

FROM THE EPISODE'S PLOT AT WIKIPEDIA:
At Moe’s hotel room (where he lives) Lisa Simpson discovers Moe has been writing his random thoughts on post-it notes. She arranges them and gives them a title of her own invention, and sends it to a poetry journal where it becomes a smash hit, and he is acclaimed as a Charles Bukowski-like poet.

Moe is invited to “Wordloaf,” a writer’s convention in Vermont, by Tom Wolfe (who voices himself). While driving there, Homer avoids drinking and driving by driving only between sips of beer. Moe and the Simpsons finally arrive at the convention while being pursued by the police of every state in New England. At the convention, Moe mingles among noted authors Tom Wolfe, Gore Vidal, Michael Chabon and Jonathan Franzen. After Gore Vidal is ejected from the gathering when he reveals he took the titles of his various books from things he saw, as opposed to creating the title himself “as any true author does,” Moe takes credit for the poem’s name saying it was a solo effort. This breaks Lisa’s heart and she abandons him. Moe seems to show no remorse and even asks Lisa to craft another poem for him, but she refuses.

“Moe’n’a Lisa” is the sixth episode of the eighteenth season of The Simpsons, which originally aired on 19 November 2006. It was written by Matt Warburton and directed by Mark Kirkland. The title of the episode is a pun on the Mona Lisa as well as an allusion to the title of the season one episode "Moaning Lisa".