War seems to be ingrained in human nature, and even to be regarded as something noble to which man is inspired by his love of honor, without selfish motives.
noblequotes
Civilization has absolutely no need of nobility or heroism. These things are symptoms of political inefficiency. In a properly organized society like ours, nobody has any opportunities for being noble or heroic.
civilization / heroic / inefficiency / noble
Only the noble of heart are called to difficulty.
difficulty / Heart / noble