A thesis stating that a wise prince must ensure his citizens always need the state, thereby securing their loyalty during times of crisis when it matters most.

The author posits that a strong prince can maintain the loyalty of his subjects during a siege by balancing their hopes and fears, eventually binding them to him through the shared experience of sacrifice. He notes that men are naturally inclined to feel obligated to those they have suffered for or benefited from.

A reflection on ecclesiastical principalities, which are described as uniquely secure and happy because they are maintained by divine power rather than human reason or military defense.

The author asserts that the primary foundations of a stable state are good laws and a strong military, specifically one composed of the prince's own subjects. He dismisses mercenaries and auxiliaries as useless and dangerous, arguing they lack the genuine motivation required to face death in battle.

The author criticizes the use of mercenary captains, arguing they are either dangerously ambitious or incompetently ruinous, and insists that a prince must lead his own army in person.