Niccolò Machiavelli became a term describing someone or something that is "marked by cunning, duplicity, or bad faith". "Machiavellianism" also remains a popular term used in speeches and journalism; while in psychology, it denotes a personality type. While Machiavellianism is notable in the works of Machiavelli, Machiavelli's works are complex and he is generally agreed to have been more than just "Machiavellian" himself. For example, J.G.A. saw him as a major source of the republicanism that spread throughout England and North America in the 17th and 18th centuries and Leo , whose view of Machiavelli is quite different in many ways, agreed
Niccolò Machiavelli ruler. Machiavelli has become infamous for such political advice, ensuring that he would be remembered in history through the adjective, "Machiavellian". Notwithstanding some mitigating themes, the Catholic Church banned "The Prince", putting it on the "Index Librorum Prohibitorum". Humanists also viewed the book negatively, including Erasmus of Rotterdam. As a treatise, its primary intellectual contribution to the history of political thought is the fundamental break between political realism and political idealism, due to it being a manual on acquiring and keeping political power. In contrast with Plato and Aristotle, Machiavelli insisted that an imaginary ideal society is not a model