That sounded a little familar when I read it.. and realised it's used in the Qu'raan a few times! I agree it sounds very "classical" and .. "nice" lol.... and a more classical way of saying it is:
إن مَثَل اللغة كمَثَل القهوة (inna mathalal-lughati kamathalil-qahwah)
and normally followed by an explanation of how the two are the same.
MonsieurAquilone, can you explain to us wherein lies the similarity. It's not apparent to me.