ει29Εἴδη
forms
The Pythagoreans used to say that the monad and dyad and triad are principles of the forms, since those who arrange from the monad up to the tetrad produce the decad; and they also regarded it perfect and named it…
Εἴδη· ὅτι ἀρχὰς τῶν εἰδῶν ἔλεγον οἱ Πυθαγόρειοι τὴν μονάδα καὶ δυάδα καὶ τριάδα, διότι οἱ ἀπὸ μονάδος συντιθέμενοι μέχρι τῆς τετράδος ποιοῦσι τὸν δέκα, ὃς αὐτοῖς καὶ τέλειος…