All great movements, every vigorous impulse that a community may feel, become perverted and distorted as time passes, and the atmosphere of the earth seems fatal to the noble aspirations of its peoples. A wide humanitarian sympathy in a nation easily degenerates into hysteria. A military spirit tends towards brutality. Liberty leads to license, restraint to tyranny. The pride of race is distended to blustering arrogance. The fear of God produces bigotry and superstition. There appears no exception to the mournful rule, and the best efforts of men, however glorious their early results, have dismal endings…

Winston Churchill, The River War.