Nevertheless, the Unequalness of the ground would not permit a widely extended front to be so exactly drawn up as to have their shields everywhere joined; and Aemilius perceived that there were a great many interstices and breaches in the Macedonian phalanx; as it usually happens in all great armies, according to the different efforts of the combatants, who in one part press forward with eagerness, and in another are forced to fall back.
"Plutarch-Lives-of-the-noble-Grecians-and-Romans"
Clough, Arthur Hugh