Pliny the Younger (A.D. 62?–c.A.D. 113). Letters.
The Harvard Classics. 1909–14.
LIV. To the Emperor Trajan
I BEG, Sir, you would settle a doubt I have concerning your diplomas; whether you think proper that those diplomas the dates of which are expired shall continue in force, and for how long? For I am apprehensive I may, through ignorance, either confirm such of these instruments as are illegal or prevent the effect of those which are necessary.