In "The House of Hades" by Rick Riordan, an important quote highlights the tension between legality and leadership. Frank suggests that Caesar's decision to cross the Rubicon was technically unlawful, yet it was a pivotal moment that showcased the necessity for leaders to sometimes step beyond the constraints of the law. This act of defiance illustrates the complex responsibilities leaders face in making tough choices for the greater good.

The implication is that great leadership does not solely adhere to established rules, but rather requires a willingness to take risks. By thinking outside the box, leaders can navigate challenges that may call for actions outside conventional boundaries. This perspective emphasizes that exceptional leaders must balance legality with the demands of their time and circumstances.