DA gre, ed. W.D.Ross,Ἀναγκαῖον δὲ τὸν μέλλοντα περὶ τούτων σκέψιν ποιείσθαι λαβεῖν ἕκαστον αὐτῶν τί ἐστιν, εἶθʼοὕτως περὶ τῶν ἐχομένων καὶ περὶ τῶν ἄλλων ἐπιζητεῖν.
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