John Maxwell "A leader is one who knows the way, goes the way, and shows the way." Warren Bennis"A leader is someone who creates a sense of direction and inspires others to follow."Peter Drucker"Leadership is not about making speeches or being liked; leadership is defined by results, not attributes." I agree with the definition given by John Maxwell. It succinctly summarizes the three basic elements of leadership, which are knowledge, action, and direction, so I  agree with him

Daniel Goleman"Leadership is the ability to inspire others to achieve and engage."Daniel Goleman "Leadership is the ability to inspire others to achieve and participate." Barry Posner and James Kouzes "Leadership is the relationship between those who aspire to lead and those who choose to follow."Barry Posner and James Kouzes"Leadership is a relationship between those who aspire to lead and those who choose to follow." Max DePree"The first responsibility of a leader is to define reality."I concur since a key component of good leadership is establishing reality.It is the responsibility of leaders to evaluate the circumstances as they stand, point out obstacles, and let their followers know this.This openness develops the shared understanding and trust that are essential for group activity.Max DePree's explanation is quite persuasive, in my opinion.