Although war itself is full of horrors it must not be forgotten that it has an obverse side. In some ways it acts like the old-fashioned surgical operation of blood-letting. All the moral scum in humanity's character rises to the surface, concentrated mostly amongst the totalitarian gangsters, but it rises only that it may be seen for what it is and cleared off. The sufferings of mankind have an educative value and tend to adjust the sins and excesses of mankind. It is the ultimate tendency of evil forces to destroy themselves from within as well as to suffer destruction from without through the mysterious operation of karma. Materialism reaches its final culmination in the social and personal crises generated by war. By displaying its own horrible results before humanity's very eyes, it is, by reaction, awakening many sleeping mentalities to the need of a spiritual outlook.
-- Notebooks Category 11: The Negatives > Chapter 3: Their Presence in The World > # 135