Niccolò Machiavelli,
Discourses on Livy (Neville) — Third Book…
(1531)
“ For whenever something is lost which is abandoned but the army remains intact, he neither loses reputation in the war nor the hope of winning it. But when something is lost which you had planned to defend, and everyone believed you would defend it, then there is damage as well as defeat, and you have almost, like the Gauls, lost the war through a matter of little moment. ”
