Front Page Titles (by Subject) XLIV: To the Emperor Trajan - Letters of Marcus Tullius Cicero
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XLIV: To the Emperor Trajan - Marcus Tullius Cicero, Letters of Marcus Tullius Cicero 
Letters of Marcus Tullius Cicero: with his Treatises on Friendship and Old Age, trans. E.S. Shuckburgh. And Letters of Gaius Plinius Caecilius Secundus, trans. William Melmoth, revised by F.C.T. Bosanquet (New York: P.F. Collier, 1909).
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To the Emperor Trajan
We have acquitted, Sir, and renewed our annual vows1 for your prosperity, in which that of the empire is essentially involved, imploring the gods to grant us ever thus to pay and thus to repeat them.
[1 ]This was an anniversary custom observed throughout the empire on the 30th of December. M.