Cyropaedia

And when the paean was ended, the peers marched on cheerily ,well-disciplined, looking toward one another, calling by name to comrades beside them and behind them, and often saying: On, friends, On, brave fellows; thus they encouraged one another to the charge. And those behind, hearing them, in their turn cheered the front line to lead them bravely on. So Cyrus’s army was filled with enthusiasm, ambition, strength, courage, exhortation, self-control, obedience; and this, I think, is the most formidable thing an enemy has to face.

But when the main body of the Persians began[*](The Assyrians fail to withstand the charge) to get close to them, those of the Assyrians who dismounted from their chariots and fought in front of their army remounted their chariots and gradually drew back to their own main body, while the bowmen, spearmen, and slingers let fly their missiles long before they could reach the enemy.

And when the Persians, charging on, set foot upon the missiles that had been discharged, Cyrus shouted, Bravest of men, now let each press on and distinguish himself and pass the word to the others to come on faster. And they passed it on; and under the impulse of their enthusiasm, courage, and eagerness to close with the enemy some broke into a run, and the whole phalanx also followed at a run.

And even Cyrus himself, forgetting to proceed at a walk, led them on at a run and shouted as he ran: Who will follow? Who is brave? Who will be the first to lay low his man? And those who heard him shouted with the same words, and the cry passed through all the ranks as he had started it: Who will follow? Who is brave?