On the whole, the system of Pythagoras, with many excellencies, contained some gross absurdities and superstitions, which were dignified with the name of philosophy, and which exerted a pernicious influence over the opinions of many succeeding generations. THE ELEUSIN'IAN MYSTERIES, Closely connected with the public and private instruction that the philosophers gave in their various systems, were certain national institutions of a secret character, which combined the mysteries of both philosophy and religion. The most celebrated of these, the great festival of Eleusinia, sacred to Ce'res and Pros'erpine, was observed every fourth year in different parts of Greece, but more particularly by the people of Athens every fifth year, at Eleu'sis, in Attica. What is known of the rites performed at Eleusis has been gathered from occasional incidental allusions found in the pages of nearly all the classical authorities; and although the penalty of a sudden and ignominious death impended over anyone who divulged these symbolic ceremonies, yet enough is now known to describe them with much minuteness of detail. We have not the space to give that detailed description here, but the ceremonies occupied nine days, from the 15th to the 23d of September, inclusive. The first day was that on which the worshippers merely assembled; the second, that on which they purified themselves by bathing in the sea; the third, the day of sacrifices; the fourth, the day of offerings to the goddess; the fifth, the day of torches, when the multitude roamed over the meadows at nightfall carrying flambeaus, in imitation of Ceres searching for her daughter; the sixth, the day of Bacchus, the god of Vintage; the seventh, the day of athletic pastimes; the eighth, the day devoted to the lesser mysteries and celestial revelations; and the ninth, the day of libations. The language that Virgil puts into the mouth of Anchi'ses, in the Sixth Book of the Æneid, is regarded as a condensed definition of the secrets of Eleusis and the creed of Pythagoras. The same book, moreover, is believed to represent several of the scenes of the mysteries. In the following words the shade of Anchises answers the inquiries of "his godlike son:"