C. Julius Caesar, Gallic War

Having drawn out all his forces at the break of day, and marshaled them in a double line, he posted the auxiliaries in the center, and waited to see what measures the enemy would take. They, although on account of their great number and their ancient renown in war, and the small number of our men, they supposed they might safely fight, nevertheless considered it safer to gain the victory without any wound, by besetting the passes [and] cutting off the provisions: and if the Romans, on account of the want of corn, should begin to retreat, they intended to attack them while encumbered in their march and depressed in spirit [as being assailed while] under baggage. This measure being approved of by the leaders and the forces of the Romans drawn out, the enemy [still] kept themselves in their camp. Crassus having remarked this circumstance, since the enemy, intimidated by their own delay, and by the reputation [i.e. for cowardice arising thence] had rendered our soldiers more eager for fighting, and the remarks of all were heard [declaring] that no longer ought delay to be made in going to the camp, after encouraging his men, he marches to the camp of the enemy, to the great gratification of his own troops.)