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This in turn can help to explain why Nicholas , and his creator as well , feel decidedly uneasy about the Crummleses , and it clarifies a useful landmark in the course of Dickens 's development as an artist who was also an entertainer himself . By filling his book with humour and pathos , he hoped to arouse ' merriment ' and sympathies ' , and he proposed to amuse his readers by constructing a fast-moving plot full of striking incidents and a multiplicity of boldly delineated characters . The way of a man in his youth was one of the four things that the sage could not understand ; the fifth was the shamelessness of an adu1teress . The American viceroy in Iraq has changed his tune about the death squads .