ILLUMINATI, just mentioning the Illuminati is the cause of much discussion. Either a person is convinced of an Illuminati plot to control the world, or they vehemently deny the existence altogether. Either side your opinion lies, discussion of The Illuminati can be a fascinating subject.
Illuminati, the word itself is supposed to mean those who have become Spiritually Enlightened, or make claims to that affect. Even today there are those Intellectually Pretentious people who consider themselves to be part of an Elite Race of Wise Men.