a language effervescent

I've been looking for this for a while, something unique in English, a quadruple negative. It's probably better to call it a triple negative and a half, because "difficult" is not necessarily a negating word. It could be a quintuple negative if the entire sentence was actually taken into account. The following quote was found in What We Believe but Cannot Prove:

Of course, the fact that I find it difficult to think of beings that won't need our sort of mathematics doesn't mean they don't exist, but that's what I believe without proof. (emphasis added)

Amazing how this writer Karl Sabbagh expresses his belief that intelligent beings must be able to count and use mathematics as we do, but concedes that there could exist intelligent beings that don't, offering the idea that beings may not need discrete counting because their forms may lack a discrete body "in some Jovian sea."