ХуЛите - The greatest trick the devil ever pulled...

... was convincing the world he didn`t exist.

This quote is attributed to a number of christian scholars and the French writer Charles Baudelaire. It was famously reiterated in the movie "The usual suspects" by the main character Verbal Kint (played by Kevin Spacey).

In my opinion, the greatest trick the world ever pulled was convincing itself the Devil and God were separate entities.