Laudator Temporis Acti

Nathaniel Hawthorne (1804-1864), "Chiefly About War Matters," Tales, Sketches, and Other Papers = his Works, Vol. XII (Boston: Houghton, Mifflin and Company, 1883), pp. 299-345 (at 320-321):

His face had a healthy hue of exposure and an expression of careless hardihood; and, as I looked at him, it seemed to me that the war had brought good fortune to the youth of this epoch, if to none beside; since they now make it their daily business to ride a horse and handle a sword, instead of lounging listlessly through the duties, occupations, pleasures — all tedious alike — to which the artificial state of society limits a peaceful generation. The atmosphere of the camp and the smoke of the battlefield are morally invigorating; the hardy virtues flourish in them, the nonsense dies like a wilted weed. The enervating effects of centuries of civilization vanish at once, and leave these young men to enjoy a life of hardship, and the exhilarating sense of danger, — to kill men blamelessly, or to be killed gloriously, — and to be happy in following out their native instincts of destruction, precisely in the spirit of Homer's heroes, only with some considerable change of mode. One touch of Nature makes not only the whole world, but all time, akin. Set men face to face, with weapons in their hands, and they are as ready to slaughter one another now, after playing at peace and good-will for so many years, as in the rudest ages, that never heard of peace-societies, and thought no wine so delicious as what they quaffed from an enemy's skull.

Id. (at 333-334):

It is a pity that old men grow unfit for war, not only by their incapacity for new ideas, but by the peaceful and unadventurous tendencies that gradually possess themselves of the once turbulent disposition, which used to snuff the battle-smoke as its congenial atmosphere. It is a pity; because it would be such an economy of human existence, if time-stricken people (whose value I have the better right to estimate, as reckoning myself one of them) could snatch from their juniors the exclusive privilege of carrying on the war. In case of death upon the battle-field, how unequal would be the comparative sacrifice! On one part, a few unenjoyable years, the little remnant of a life grown torpid; on the other, the many fervent summers of manhood in its spring and prime, with all that they include of possible benefit to mankind. Then, too, a bullet offers such a brief and easy way, such a pretty little orifice, through which the weary spirit might seize the opportunity to be exhaled! If I had the ordering of these matters, fifty should be the tenderest age at which a recruit might be accepted for training; at fifty-five or sixty, I would consider him eligible for most kinds of military duty and exposure, excluding that of a forlorn hope, which no soldier should be permitted to volunteer upon, short of the ripe age of seventy. As a general rule, these venerable combatants should have the preference for all dangerous and honorable service in the order of their seniority, with a distinction in favor of those whose infirmities might render their lives less worth the keeping. Methinks there would be no more Bull Runs; a warrior with gout in his toe, or rheumatism in his joints, or with one foot in the grave, would make a sorry fugitive!