The Prince

Machiavellian adj. elaborately cunning; scheming, unscrupulous.
Machiavellianism n. (N. dei Machiavello, Florentine statesman and political writer d. 1527, who advocated resort to morally questionable methods in the interests of the State).

How remarkable that an Italian living in the 15th and 16th centuries should lend his name to a word still in common usage in the English language today.
The Prince has remained a prominent classic ever since its publication in 1513; valued for its shrewd ps...