The ethical religion of Zoroaster

""WHAT award thou givest by thy spirit and the Fire and hast taught by Right to the two parties and what decision unto the wise and what law governeth the enlightened, this do thou tell us, oh God (Ahura Mazda), that we may know even with the tongue of thine own mouth, so that I may cause all who live to choose aright" (Yasna XXXI, 3)."