Plato, Laws 896d

δόξαι ἀληθεῖς ἐπιμέλειαί τε καὶ μνῆμαι πρότερα μήκους σωμάτων καὶ πλάτους καὶ βάθους καὶ ῥώμης εἴη γεγονότα ἄν, εἴπερ καὶ ψυχὴ σώματος. ἀνάγκη. ἆρʼ οὖν τὸ μετὰ τοῦτο ὁμολογεῖν ἀναγκαῖον τῶν τε ἀγαθῶν αἰτίαν εἶναι ψυχὴν καὶ τῶν κακῶν καὶ καλῶν καὶ αἰσχρῶν δικαίων τε καὶ ἀδίκων καὶ πάντων τῶν ἐναντίων, εἴπερ τῶν πάντων γε αὐτὴν θήσομεν αἰτίαν; πῶς γὰρ οὔ; ψυχὴν δὴ διοικοῦσαν καὶ ἐνοικοῦσαν ἐν ἅπασιν

Moods and dispositions and wishes and calculations and true opinions and considerations and memories will be prior to bodily length, breadth, depth and strength, if soul is prior to body. Necessarily. Must we then necessarily agree, in the next place, that soul is the cause of things good and bad, fair and foul, just and unjust, and all the opposites, if we are to assume it to be the cause of all things? Of course we must. And as soul thus controls and indwells in all things