Numenius presents his own doctrine of matter, which is clearly developed out of Plato’s Timaeus, as the work of Pythagoras (Fr. 52 Des Places). Matter in its disorganized state is identified with the indefinite dyad. Numenius argues that for Pythagoras the dyad was a principle independent of the monad; later thinkers, who tried to derive the dyad from the monad (he does not name names but Eudorus, Moderatus and the Pythagorean system described by Alexander Polyhistor fit the description), were t