poetry and verse

“Verse is everywhere in language where there is rhythm, everywhere, except on posters and page four of the newspapers. In the genre which we call prose there is verse of every conceivable rhythm, some of it admirable. But in reality there is no prose, there is the alphabet, and then there are verse forms, more or less rigid, more or less diffuse. In every attempt at style there is versification.”

–Mallarmé, “Réponses à des enquetes”

Prose-as-verse. Yes? No?

Is all poetry poetry? (I’m not asking about bad vs. good.) And are verse and poetry the same thing?