Andrew Carnegie, pronounced "car"-NAY-"ghee" , was known for his impact on industrialization after the Civil War. His main achievement was his work on railroads throughout America. He wrote "Gospel of Wealth" which demonstrated the positive effects of a capitalistic society on big businesses. He believes that the separation between the upper and lower classes is beneficial to the government. He also believes that he and the other industrialists of the time helped the social aspect of government in this postbellum period. Although, Carnegie was in fact an enormous philanthropist during the time, and believed that other large businessmen should do the same.