having an inner or secret meaning. This term, and its correlative "exoteric," were first applied in the ancient Greek mysteries to those who were initiated ( g o-co, within) and to those who were not (Qw, outside), respectively. It was then transferred to a supposed distinction drawn by certain philosophers between the teaching given to the whole circle of their pupils and that containing a higher and secret philosophy which was reserved for a select number of specially advanced or privileged disciples. This distinction was ascribed by Lucian (Vit. Auct. 26) to Aristotle, who, however, uses E WTEptKol X6-yoc (Nic. Ethics) merely of "popular treatises." It was probably adopted by the Pythagoreans and was also attributed to Plato. In the sense of mystic it is used of a secret doctrine of theosophy, supposed to have been traditional among certain disciples of Buddhism.