A revolution is an act of violence whereby one class shatters the authority of another.

Leaders are not pale reflectors of major social conflicts; they play up some, play down others, ignore still others.

The practice of leadership is not the same as the exercise of power.

Divorced from ethics, leadership is reduced to management and politics to mere technique.

The ultimate test of practical leadership is the realization of intended, real change that meets people's enduring needs.

Such leadership occurs when one or more persons engage with others in such a way that leaders and followers raise one another to higher levels of motivation and morality.

To elevate the goals of humankind, to achieve high moral purpose, to realize major intended change, leaders must thrust themselves into the most intractable processes and structures of history and ultimately master them.