Note 84 — BOOK VI SIMON MAGUS, VALENTINUS, AND THEIR FOLLOWERS
Francis Legge translation
Diogenes Laertius, Book VIII, c. 19 quotes from Alexander’s Successions of Philosophers that Pythagoras in his Commentaries put first the monad, then the undefined dyad, and said that from these two numbers proceeded, from numbers signs, from signs lines, from lines plane figures, from planes solids, and from solids perceptible bodies consisting of the four elements, fire, water, earth and air.