The Roman History · Amm. 16.12.22

For they knew that a cavalry soldier, however skilful, if fighting with one of our men in complete armour, while his hands were occupied with shield and bridle, so that he could use no offensive weapon but the spear which he brandished in his right hand, could never injure an enemy wholly covered with iron mail; but that an infantry soldier, amid the actual struggles of personal conflict, when nothing is usually guarded against by a combatant except that which is straight before him, may crawl unperceivedly along the ground, and piercing the side of the Roman soldier's horse, throw the rider down headlong, rendering him thus an easy victim.

Ammianus Marcellinus · translated by C. D. Yonge · 1911 reprint
C. D. Yonge translation (preface dated February 1862); G. Bell and Sons, 1911; Project Gutenberg #28587
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