The Wealth of Nations by Part 5 Chapter 1 Page 26

ever was before. All the dexterity and skill, it is supposed, which are necessary for using it, can be well enough acquired by practising in great bodies.

Regularity, order, and prompt obedience to command are qualities which, in modern armies, are of more importance towards determining the fate of battles than the dexterity and skill of the soldiers in the use of their arms. But the noise of firearms, the smoke, and the invisible death to which every man feels himself every moment exposed as soon as he comes within cannon-shot, and frequently a long time before the battle can be well said to be engaged, must render it very difficult to maintain any considerable degree of this regularity, order, and prompt obedience, even in the beginning of a modern battle.

In an ancient battle there