"No one is so brave that he is not disturbed by something unexpected."
— Julius Caesar
No One Is So Brave That
No one is so brave that he is not disturbed by something unexpected.
About this quote
From Commentarii de Bello Gallico, Book 6, covering Caesar's operations in 53 BC, including expeditions across the Rhine into Germanic territory. The Commentarii are Caesar's own dispatches and memoirs, written in the third person and addressed to a Roman audience — part military report, part political self-justification. The observation on the limits of courage reflects Caesar's practical psychological realism about soldiers under the unexpected pressures of campaign.
Source
Commentarii de Bello Gallico, Book 6