They Concealed the Highest Truths Under the Veil of Allegory

In this spirit of mystery they professed to imitate the Deity, who hides Himself from our senses, and conceals from us the springs by which He moves the Universe.

They admitted that they concealed the highest truths under the veil of allegory, the more to excite the curiosity of men, and to urge them to investigation.

Albert Pike
Morals and Dogma

Source: Morals and Dogma