" Freemasonry is a fraternity within a fraternity -- an outer organization concealing an inner brotherhood of the elect ... it is necessary to establish the existence of these two separate and yet interdependent orders, the one visible and the other invisible. The visible society is a splendid camaraderie of 'free and accepted' men enjoined to devote themselves to ethical, educational, fraternal, patriotic, and humanitarian concerns. The invisible society is a secret and most August fraternity whose members are dedicated to the service of a mysterious arcannum arcandrum." [Lectures on Ancient Philosophy, p. 433]
"Masonry, like all the Religions, all the Mysteries, Hermeticism, and Alchemy, conceals its secrets from all except the Adepts and Sages, or the Elect, and uses false explanations and misinterpretations of its symbols to mislead those who deserve only to be mislead; to conceal the Truth, which it calls light, and draw them away from it." [Morals and Dogma, p. 104-5, 3rd Degree]
"So Masonry jealously conceals its secrets and intentionally leads conceited interpreters astray." [Morals and Dogma, p. 105]
These quotes are from books written by highly respected masonic authors published by masonic publishers. People may think they know what this society is about, but unless they are an adept or elect, they really have no idea. They use the same tactics on the visible brotherhood that they use on the "profane".