Plato, Letters 342d

τε ἔμπροσθεν λεχθέντων τριῶν. τούτων δὲ ἐγγύτατα μὲν συγγενείᾳ καὶ ὁμοιότητι τοῦ πέμπτου νοῦς πεπλησίακεν, τἆλλα δὲ πλέον ἀπέχει. ταὐτὸν δὴ περί τε εὐθέος ἅμα καὶ περιφεροῦς σχήματος καὶ χρόας, περί τε ἀγαθοῦ καὶ καλοῦ καὶ δικαίου, καὶ περὶ σώματος ἅπαντος σκευαστοῦ τε καὶ κατὰ φύσιν γεγονότος, πυρὸς ὕδατός τε καὶ τῶν τοιούτων πάντων, καὶ ζῴου σύμπαντος πέρι καὶ ἐν ψυχαῖς ἤθους, καὶ περὶ ποιήματα καὶ παθήματα σύμπαντα· οὐ γὰρ ἂν τούτων

intelligence approaches most nearly in kinship and similarity to the fifth, and the rest are further removed. The same is true alike of the straight and of the spherical form, and of color, and of the good and the fair and the just, and of all bodies whether manufactured or naturally produced (such as fire and water and all such substances), and of all living creatures, and of all moral actions or passions in souls. For unless