It is from numberless diverse acts of courage and belief that human history is shaped. Each time a man stands up for an ideal, or acts to improve the lot of others, or strikes out against injustice, he sends forth a tiny ripple of hope, and crossing each other from a million different centers of energy and daring, those ripples build a current that can sweep down the mightiest walls of oppression and resistance.
– Robert F . Kennedy

We must never despair; our situation has been compromising before; and it changed for the better; so I trust it will again. If difficulties arise; we must put forth new exertion and proportion our efforts to the exigencies of the times.
– George Washington

We must remember that one determined person can make a significant difference, and that a small group of determined people can change the course of history.
-Sonia Johnson

Never doubt that a small, group of thoughtful, committed citizens can change the world. Indeed, it is the only thing that ever has.
– Margaret Mead

Hope has never trickled down. It has always sprung up.
– Studs Terkel

At certain points in history, the energy level of people, the indignation level of people rises. And at that point it becomes possible for people to organize and to agitate and to educate one another, and to create an atmosphere in which the government must do something.
– Howard Zinn, historian

There is no act too small, no act too bold. The history of social change is the history of millions of actions, small and large, coming together at points in history and creating a power that governments cannot suppress.
– Howard Zinn

To hell with circumstances; I create opportunities.
– Bruce Lee

In times of danger large groups rise to the highest pitch of enthusiasm, courage and sacrifice . . . Mankind will be refashioned and history rewritten when this law is understood and obeyed.
-Helen Keller

From:  http://www.washingtonsblog.com/2015/05/how-to-change-the-world-overnight.html