When the bloodshed and horrors of fighting have to be experienced by one on the Quest, let him steel his nerves and toughen his feelings by sheer effort of willpower. Let him console himself in the knowledge that it is only a temporary affair and will have to come to an end, at which time he can then live the kind of life he wants to live. Such a state of affairs, although a terrible business, underlines Buddha's teaching about the ever-presence of suffering and the consequent necessity of finding an inner refuge from it. Whatever happens, he must try to keep his moral outlook undegraded by outside pressures. Good character is the foundation of a worthwhile life, spiritually and materially.
-- Notebooks Category 6: Emotions and Ethics > Chapter 7: Miscellaneous Ethical Issues > # 34