"Macchiavellis Buch vom Fürsten" by Niccolò Machiavelli is a political treatise written in 1513. Presented as an instruction guide for new princes, this controversial work argues that immoral acts may be necessary to achieve political power. Breaking with traditional Catholic teachings, Machiavelli uses examples from history—including the murderous career of Cesare Borgia—to demonstrate that practical effectiveness matters more than abstract ideals. This short but revolutionary text gave birth to the term "Machiavellian" and transformed how we understand politics and power.
Wikipedia page about this book: de.wikipedia.org/wiki/Der_F%C3%BCrst Wikipedia page about this book: en.wikipedia.org/wiki/The_Prince