gre ed. Burnet 1903 306cΞένος
ἐν τοῖς σύμπασι χρὴ ζητεῖν ὅσα καλὰ μὲν λέγομεν, εἰς δύο δὲ αὐτὰ τίθεμεν ἐναντία ἀλλήλων εἴδη.
eng tr. Jowett 1817-1893STRANGER:
We must extend our enquiry to all those things which we consider beautiful and at the same time place in two opposite classes.
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