Pliny the Younger (A.D. 62?–c.A.D. 113). Letters. The Harvard Classics. 1909–14.
CIII. To the Emperor Trajan
WE have celebrated, with all the warmth of that pious zeal we justly ought, the day on which, by a most happy succession, the protection of mankind was committed over into your hands; recommending to the gods, from whom you received the empire, the object of your public vows and congratulations.