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Μούνη γὰρ ἄγειν οὐκέτι σωκῶ λύπης ἀντίρροπον ἄχθος → I have no longer strength to bear alone the burden of grief that weighs me down
ἐπιμόνως: постоянно (Arst. - v. l. к ἐπεὶ μόνως; λαμπάσιν ἐ. πυρούμενοι ποινῶν Plat. - о грешниках).