Note 284 — PRELIMINARY DISCOURSE. (continued 3)
Francis Adams translation
Diogenes Laertius, Life of Pythagoras. That Monad and Duad, in the symbolical language of Pythagoras, signified Mind and Matter, is positively stated by Philo Judæus. Ἑπόμενος δ' ἀκολουθίᾳ ύσεως κἀκεῖνο λέξω ὅτι μουὰς εἴκων αἰτίου πρώτου, δυὰς δε παθητῆς καὶ διαιρετῆς ὕλης.—De Specialibus Legibus. It may be proper to mention here that it is not true, as has been often stated in modern works, that Pythagoras himself taught the same system of the world as Copernicus; the first person who did so was Philolaus the Pythagorean philosopher. See Diogenes Laertius.