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Μὴ φῦναι τὸν ἅπαντα νικᾷ λόγον → Not to be born is, past all prizing, best.
sibus: callidus sive acutus, Fest. p. 336 Vahl.; cf. persibus.
sĭbus, a, um, fin, avisé : P. Fest. 336, 3 ; v. persibus.