Res Gestae
Ammianus Marcellinus
Ammianus Marcellinus. Ammianus Marcellinus, with an English translation, Vols. I-III. Rolfe, John C., translator. Cambridge, MA; London: Harvard University Press; W. Heinemann, 1935-1940 (printing).
A general of Praeneste in one of the Samnite wars had been ordered to hasten to his post, but had been slow to obey, and was summoned to expiate that misdeed; Papirius Cursor, who was dictator at the time, ordered the lictor to make ready his axe, and in sight of the man, who was overcome with terror and had given up hope of excusing himself, he gave orders that a bush seen near should be cut down, by a jest of this kind[*](Cf. Livy, ix. 16, 17 ff; Pliny, N.H. xvii. 81; Pseud.- Aur. Vict., De Viris Illustr., 3, 14 ff.) at the same time punishing and acquitting the man; and thereby he suffered no loss of respect, and he
Valentinian, who perhaps knew nothing of these instances, and did not consider that slowness to anger in rulers is always a solace for unhappy circumstances, increased the number of punishments by fire and sword, which a righteous spirit regards as the last resort in times of stress, as the splendid writer Isocrates says;[*](Panath. 185, θαυμάζω δ᾽, εἴ τινες τὰς μάχας καὶ τὰς ϝίκας παρὰ τὸ δίκαιον γιγνομένας μὴ νομίζουσιν αἰσχίους εἶναι καὶ πλειόνων ὀνειδῶν μεστὰς ἢ τὰς ἥττας τὰς ἄνευ κακίας συμβαινούσας. ) there is an utterance of his for all time whereby he teaches that sometimes a ruler who has been overcome by arms ought to be pardoned, more than one who did not know what is just.
I think it was under the influence of this that Cicero made the glorious statement in his defence of Oppius:[*](This speech of Cicero has not survived.) and indeed, to have great power for the salvation of another has brought honour to many; to have had too little power to destroy him has never been a reproach to anyone.