Cassius Dio (c. 163-235)
“No army can overcome valour by sheer numbers.”
- From Cassius Dio’s The Roman History (Book 50, section 28), translated by Ian Scott-Kilvert (Penguin Classics, 1987). Dio wrote this quote in a fictional battle-speech he crafted for Octavian, before covering the Battle of Actium (which occurred in 31 BCE).