When you go to war as a boy you have a great illusion of immortality. Other people get killed; not you. . . . Then when you are badly wounded the first time you lose that illusion and you know it can happen to you. After being severely wounded two weeks before my nineteenth birthday I had a bad time until I figured out that nothing could happen to me that had not happened to all men before me. Whatever I had to do men had always done. If they had done it then I could do it too and the best thing was not to worry about it.