"The Prince" by Niccolò Machiavelli is a political treatise written in 1513. Designed as an instruction guide for new rulers, it boldly argues that immoral acts may sometimes be necessary to achieve political power and glory. Written in Italian rather than Latin, this controversial work breaks from traditional advice literature by focusing on practical effectiveness over abstract ideals. Its unflinching examination of power and leadership challenged the dominant Catholic doctrines of its time and gave birth to the term "Machiavellian."