"Designed for, and understood by, the specially initiated alone; not communicated, or not intelligible, to the general body of followers; private; interior. Opposed to exoteric." Source: Webster's Revised Unabridged Dictionary.
"The one who does not know how to fulfill his duties as a simple citizen cannot tread the path of the great mysteries. Many disciples forget the good manners of a sincere and honorable gentleman or lady and become truly irresponsible and even dangerous individuals."