Cassius Dio (Greco-Roman statesman and historian, c. 163-235)
“Most men are not kept within the bounds of moderation by mere admonition, or even by example; it is absolutely necessary to punish them by disfranchisement, by exile, or by death.”
- From Cassius Dio’s The Roman History (Book 52, chapter 7), translated by Ian Scott-Kilvert (Penguin Classics, 1987). Dio wrote this quote in the character of Agrippa for a scene where Octavian was hearing advice from his advisors before deciding if Rome should become a democracy or remain dictatorial.
