43.
Τοιοῦτός ἐστι καὶ ὁ ὑπὸ Ξενοκράτους τῆς ψυχῆς ἀποδοθεὶς ὁρισμός· ἀριθμὸς γάρ φησίν ἐστι κινῶν ἑαυτόν· ὁ γὰρ τοῦτον ἀκούσας οὐδὲν εἰκάσαι καὶ λαβεῖν ἐξ αὐτοῦ τῶν τῇ ψυχῇ ἢ τῷ ζῴῳ ὑπαρχόντων δυνήσεται.Fragmenta. Xenocrates of Chalcedon. ed. Friedrich Wilhelm August Mullach. Paris. 1881.
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