"Poor human nature cannot bear such strains as heavenly triumphs bring to it; there must come a reaction. Excess of joy or excitement must be paid for by subsequent depressions. While the trial lasts, the strength is equal to the emergency; but when it is over, natural weakness claims the right to show itself."

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Those who actually set out to see the fall of a city or those who choose to go to a front line, are obviously asking themselves to what extent they are cowards. But the tests they set themselves - there is a dead body, can you bear to look at it? - are nothing in comparison with the tests that are sprung on them. It is not the obvious tests that matter (do you go to pieces in a mortar attack?) but the unexpected ones (here is a man on the run, seeking your help - can you face him honestly?).

— James Fenton