The esoteric traditions have come down from remote antiquity into a large part of the Oriental and Occidental hemispheres. In most cases they were well guarded. A thorough study of them shows that they hold many dissimilarities. If some of these are due to the changes which are inevitable from one century to another, or in transposition from one climate to another, others are clearly due to irreconcilable standpoints and contradictory revelations.
-- Notebooks Category 17: The Religious Urge > Chapter 6: Philosophy and Religion > # 2