τὰ δʼ ὑπεναντίως εἰρημένα οὕτω σκοπεῖν ὥσπερ οἱ ἐν τοῖς λόγοις ἔλεγχοι εἰ τὸ αὐτὸ καὶ πρὸς τὸ αὐτὸ καὶ ὡσαύτως, ὥστε καὶ αὐτὸν ἢ πρὸς ἃ αὐτὸς λέγει ἢ ὃ ἂν φρόνιμος ὑποθῆται–Aristotle, Poetics 1461b16-18, tr. Butcher: “Things that sound contradictory should be examined by the same rules as in dialectical refutation whether the same thing is meant, in the same relation, and in the same sense. We should therefore solve the question by reference to what the poet says himself, or to what is tacitly assumed by a person of intelligence.”