Ab urbe condita
Titus Livius (Livy)
Livy. History of Rome, Volumes 1-2. Roberts, Canon, Rev, translator. London, New York: J. M. Dent and Sons; E. P. Dutton and Co., 1912.
Knowing this, he kept the strength of his men unimpaired against the time when the enemy usually began to show signs of defeat. Decius, as a younger man, possessing more vigour of mind, showed more dash;
he made use of all the strength he possessed in opening the attack, and as the infantry battle developed too slowly for him, he called on the cavalry.
Putting himself at the head of a squadron of exceptionally gallant troopers, he appealed to them as the pick of his soldiers to follow him in charging the enemy, for a twofold glory would be theirs if victory began on the left wing and, in that wing, with the cavalry. Twice they swept aside the Gaulish horse.
Making a third charge, they were carried too far, and whilst they were now fighting desperately in the midst of the enemy's cavalry they were thrown into consternation by a new style of warfare.