N his book the prince, niccolò machiavelli advises that a wise ruler is one who

The correct answer is does whatever it takes to keep and maintain power.

According to Machiavelli and his book The Prince, a powerful ruler is a person who isn't afraid of being feared, if he or she is going to keep the country safe and strong. The leader is a person who will do anything, be it right or wrong, to keep his or her power and rule over his or her people. There are no morals when it comes to reign, according to Machiavelli.