Note 1 — BOOK I.

“The religion of the ancient Persians was the worship of fire or of the elements, in which fire was symbolical of the Deity. At a later period, in the time of the Greeks, the ancient worship was changed into the adoration of the stars (Sabæism), especially of the sun and of the morning star. This religion was distinguished by a simple and majestic character. Its priests were called Magi.”—Tenneman’s Manual of the History of Philosophy, Introd. § 70.