J. G. Millingen, The History of Duelling. Vol. 2…
“ It is not, I repeat, in malice or revenge that the evil of the system lies. Nor need I insist upon the violation of the commandment, “Thou shalt not kill.” No one will dispute, at least no man who ever saw his antagonist fall in a duel, but will remember the blow with which conscience knocked at his heart in that moment of anguish,—the distinctness with which for days and years afterwards he heard the still calm voice of God whispering in the silence of his heart’s wilderness, “Where is thy brother Abel?” The evil lies deeper still. ”
