Procopius, History of the Wars, Books V and VI: The Gothic War
“ For I know that the greatest factor in the decision of war is always the attitude of the fighting men, and it is generally by their enthusiasm that successes are won. Now, therefore, the fact that a few men drawn up for battle with valour on their side are able to overcome a multitude of the enemy, is well known by every man of you, not by hearsay, but by daily experience of fighting. And it will rest with you not to bring shame upon the former glories of my career as general, nor upon the hope which this enthusiasm of yours inspires. ”
