Athens: Its Rise and Fall Book IV Vol II by Edward Bulwer-lytton

I. It is to the imperishable honour of the French philosophers of the last century, that, above all the earlier teachers of mankind, they advocated those profound and permanent interests of the human race which are inseparably connected with a love of PEACE; that they stripped the image of WAR of the delusive glory which it took, in the primitive ages of society, from the passions of savages and the enthusiasm of poets, and turned our contemplation from the fame of the individual hero to the wrongs of the butchered millions. But their zeal for that HUMANITY, which those free and bold thinkers were the first to make the vital principle of a philosophical school, led them into partial and hasty views, too indiscriminately embraced by their disciples; and, in condemning the evils, they forgot the advantages of war. The misfortunes of one generation are often necessary to the prosperity of another.

The stream of blood fertilizes the earth over which it flows, and war has been at once the scourge and the civilizer of the world: sometimes it enlightens the invader, sometimes the invaded; and forces into sudden and brilliant action the arts and the virtues that are stimulated by the invention of necessity -- matured by the energy of distress. What adversity is to individuals, war often is to nations: uncertain in its consequences, it is true that, with some, it subdues and crushes, but with others it braces and exalts. Nor are the greater and more illustrious elements of character in men or in states ever called prominently forth, without something of that bitter and sharp experience which hardens the more robust properties of the mind, which refines the more subtle and sagacious.