Whence we came? Manly Hall responds...

Far-sighted were the initiates of antiquity. They realized that nations come and go, that empires rise and fall, and that the golden ages of art, science, and idealism are succeeded by the dark ages of superstition.

With the needs of posterity foremost in mind, the sages of old went to inconceivable extremes to make certain that their knowledge should be preserved.  They engraved it upon the face of mountains and concealed it within the measurements of colossal images, each of which was a geometric marvel. Their knowledge of chemistry and mathematics they hid within mythologies which the ignorant would perpetuate, or in the spans and arches of their temples which time has not entirely obliterated. They wrote in characters that neither the vandalism of men nor the ruthlessness of the elements could completely efface.

Today men gaze with awe and reverence upon the mighty Memnons standing alone on the sands of Egypt, or upon the strange terraced pyramids of Palanque. Mute testimonies these are of the lost arts and sciences of antiquity; and concealed this wisdom must remain until this race has learned to read the universal language - SYMBOLISM.

Manly Hall, 1928
The Secret Teachings of All Ages