This kind of courage is that of all antiquity, more or less. We will not linger over it, nor delay to consider the battles of the Middle Ages or the Renascence, in which the fiercest hand-to-hand encounters of the mercenaries often left not more than half-a-dozen victims on the field. Let us rather come straight to the great wars of the Empire. Here the courage displayed begins to resemble our own, but with notable differences. In the first place, those concerned were solely professionals. We see not a whole nation fighting, but a delegation, a martial selection, which, it is true, becomes gradually more extensive, but never, as in our time, embraces every man between eighteen and fifty years of age capable of shouldering a weapon. Again--and above all--every war was reduced to two or three pitched battles, that is to say, two or three culminating moments; immense efforts, but efforts of a few hours, or a day at most, towards which the combatants directed all the vigour and all the heroism accumulated during long weeks or months of preparation and waiting. Afterwards, whether the result was victory or defeat, the fighting was over; relaxation, respite and rest followed; men went back to their homes. Destiny must not be defied more than once; and they knew that in the most terrible affray the chances of escaping death were as twenty to one. 3 Nowadays, everything is changed; and death itself is no longer what it was. Formerly, you looked it in the face, you knew whence it came and who sent it to you. It had a dreadful aspect, but one that remained human. Its ways were not unknown: its long spells of sleep, its brief awakenings, its bad days and dangerous hours. At present, to all these horrors it adds the great, intolerable fear of mystery. It no longer has any aspect, no longer has habits or spells of sleep and it is never still. It is always ready, always on the watch, everywhere present, scattered, intangible and dense, stealthy and cowardly, diffuse, all-encompassing, innumerous, looming at every point of the horizon, rising from the waters and falling from the skies, indefatigable, inevitable, filling the whole of space and time for days, weeks and months without a minute's lull, without a second's intermission. Men live, move and sleep in the meshes of its fatal web. They know that the least step to the right or left, a head bowed or lifted, a body bent or upright is seen by its eyes and draws its thunder.