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
Machiavellianism perverted admirers". In fact there is little trace of Machiavelli in French writings before the massacre, not that politicians telegraph their intentions in writing, until Gentillet's own book, but this concept was seized upon by many contemporaries, and played a crucial part in setting the long-lasting popular concept of Machiavellianism. The English playwrights William Shakespeare and Christopher Marlowe incorporated this view into some of their works. Shakespeare's Gloucester, later Richard III, refers to Machiavelli in "Henry VI, Part III", for instance: <poem>I can add colours to the chameleon, Change shapes with Proteus for advantages, And set the murderous Machiavel to