The Secret Teachings of All Ages by  Manly P. Hall 

NUMEROUS volumes have been written as commentaries upon the secret systems of philosophy existing in the ancient world, but the ageless truths of life, like many of the earth’s greatest thinkers, have usually been clothed in shabby garments. The present work is an attempt to supply a tome worthy of those seers and sages whose thoughts are the substance of its pages. To bring about this coalescence of Beauty and Truth has proved most costly, but I believe that the result will produce an effect upon the mind of the reader which will more than justify the expenditure.