MAN, thou hast two ears to hear the same sound, two eyes to perceive the same object, two hands to execute the same act. So the Masonic Science, the Science par excellence, is Esoteric and Exoteric.
Esotericism constitutes the thought, Exotericism the power.
Exotericism learns, teaches, gives;
Esotericism is neither learnt, taught, nor given: it comes from on high.
(Extract from the Grand Constitution and General Regulations)