De anima libri mantissa
Alexander of Aphrodisias
Alexander of Aphrodisias. Alexandri Aphrodisiensis Praeter Commentaria Scripta Minora, Pars 1. (Supplementum Aristotelicum, Volume 2. 1). Bruns, Ivo, editor. Berlin: Reimer, 1887.
ἀλλὰ μὴν τὸ ὑγρὸν αὐτοῖς τὸ αὐτό ἐστι, λείπεται ἄρα κατὰ ψυχρὸν καὶ θερμὸν εἶναι τὴν διαφορὰν αὐτοῖς.
ἔτι εἰ τὰ κατὰ τὸ μᾶλλον καὶ ἧττον ἀλλήλων διαφέροντα εἴδει οὐ διαφέρει, καὶ ὁ ἀὴρ ψυχρὸς καὶ ὑγρός, οὐκ ἂν τοῦ ὕδατος εἴδει διαφέροι·
καὶ γὰρ ἐκεῖνο ψυχρόν τε καὶ ὑγρόν ἐστι.
καὶ γὰρ εἰ τὸ μὲν μᾶλλον, τὸ δὲ ἧττον λέγοι τις, ἀλλ᾿ οὖν εἴδει οὐ διοίσει·
ἄμφω ἄρα ἕν, καὶ οὐκέτι τὰ στοιχεῖα τέσσαρα.
ἔτι εἰ τεττάρων οὐσῶν συμπλοκῶν ἐκ τοῦ ξηροῦ καὶ ὑγροῦ καὶ θερμοῦ καὶ ψυχροῦ αἱ τρεῖς τὰ ἄλλα στοιχεῖα εἰδοποιοῦσιν, εὔλογον τὴν καταλειπομένην συζυγίαν τὸν ἀέρα εἰδοποιεῖν.
εἰδοποιεῖ γὰρ τὸ μὲν θερμὸν καὶ ξηρὸν τὸ πῦρ, τὸ δὲ ξηρὸν καὶ ψυχρὸν τὴν γῆν, τὸ δὲ ψυχρὸν καὶ ὑγρὸν τὸ ὕδωρ, τὸ ἄρα θερμὸν καὶ ὑγρὸν εἰδοποιήσει τὸν ἀέρα.