The document contrasts authority and leadership. Authority relies on control and power over others, while leadership relies on gaining agreement and trust from followers. Authority can create conditions for leadership but having authority alone does not make one a leader. Leadership can emerge without formal authority. The document also discusses how authority and leadership can be confused, with authority sometimes being mistaken for leadership when a person in charge is successful. It provides examples of different leadership strategies like revolutionary, restorative, sustaining, and inspirational in relation to the existing environment created by authority.