Can anyone help me on this? A line in French sticks in my head that  
goes like this:

Le Paradis n'est pas artificiel.

I thought it might be Pound but can't find it using Terrell's Index  
and that idlest of all approaches, paging through the Cantos.

I know Pound said, "I have tried to write Paradise" in Canto CXX,  
emphasis apparently on the "tried," but that's as close as I can get,  
along with, "To build the city of Dioce, whose terraces are the color  
of stars." Dioce as a kind of paradisal place mentioned several times  
elsewhere.

Thanks, Tom White, Odessa, Texas.