O miseri quorum gaudia crimen habent!—O 25 wretched ye whose joys are tainted with guilt! Pseudo-Gallus.

O most lame and impotent conclusion! Othello, ii. 1.

O munera nondum / Intellecta Deum—Oh, that the gifts of the gods should not yet be understood. Lucan.

O my prophetic soul! mine uncle. Ham., i. 5.

O Nature! Ha! why do I not name thee God? Art thou not the "living garment of God?" O Heavens! is it, in very deed, He then that ever speaks through thee; that lives and loves in thee, that lives and loves in me? Carlyle.

O never / Shall sun that morrow see. Macb., i. 5. 30

O nimium nimiumque oblite tuorum—Too, too forgetful of thy kin. Ovid.

O nimm der Stunde wahr, eh' sie entschlüpft. / So selten kommt der Augenblick im Leben / Der wahrhaft wichtig ist und gross—Take note of the hour ere it slips past; so seldom does the moment come which is truly fateful and great. Schiller.

O noctes cœnæque deum!—Oh, nights and suppers of the gods! Hor.

O passi graviora!—Oh, ye who have suffered greater misfortunes than these! Virg.