DA gre, ed. W.D.Ross,πᾶσα γὰρ αἴσθησις μιᾶς ἐναντιώσεως εἶναι δοκεῖ, οἶον ὄψις λευκοῦ καὶ μέλανος, καὶ ἀκοὴ ὀξέος καὶ βαρέος, καὶ γεῦσις πικροῦ καὶ χλυκέος· ἐν δὲ τῷ ἁπτῷ πολλαὶ ἔνεισιν ἐναντιώσεις, θερμὸν ψυχρόν, ξηρὸν ὑγρόν, σκληρὸν μαλακόν, καὶ τῶν ἄλλων ὅσα τοιαῦτα.
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