正确答案:F
该题可定位于文章第二段第五行“This was the biographical tradition which Niccolo Machiavelli turned on its head.In The Prince, the championed cunning, ruthlessness, and boldness, rather than virtue, mercy and justice, as the skills of successful leaders.”由此可知Niccolo Machiavelli的态度是反对美德作为成功人士的必要成分。根据此句的提示,正确答案为F。