In further explanation whereof it is to be noted, that to work artillery effectively it should be protected by walls, by ditches, or by earthworks; and that whenever, from being left without such protection it has to be defended by men, as happens in pitched battles and engagements in the open field, it is either taken or otherwise becomes useless. Nor can it be employed on the flank of an army, save in the manner in which the ancients made use of their warlike engines, which they moved out from their columns that they might be worked without inconvenience, but withdrew within them when driven back by cavalry or other troops. He who looks for any further advantage from artillery does not rightly understand its nature, and trusts to what is most likely to deceive him. For although the Turk, using artillery, has gained victories over the Sultan and the Sofi, the only advantage he has had from it has been the terror into which the horses of the enemy, unused to such sounds, are thrown by the roar of the guns.
And now, to bring these remarks to a conclusion, I say briefly that, employed by an army wherein there is some strain of the ancient valour, artillery is useful; but employed otherwise, against a brave adversary, is utterly useless.