Rhet gre 1407a17-18οἷον εἰ ἡ φιάλη ἀσπὶς Διονύσου, καὶ τὴν ἀσπίδα (18) ἁρμόττει λέγεσθαι φιάλην Ἄρεως.
Rhys Roberts 1924 engBut the proportional metaphor must always apply reciprocally to either of its co—ordinate terms.
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