Some of these are well-known (and have been posted here before), but taken together they are quite nice.
From CSM:
http://www.csmonitor.com/World/Maki.../11-quotes-from-difference-makers/Fred-Rogers
1. Fred Rogers
“When I was a boy and I would see scary things in the news, my mother would say to me, ‘Look for the helpers. You will always find people who are helping.’”
2. Leonardo da Vinci
“I have been impressed with the urgency of doing. Knowing is not enough; we must apply. Being willing is not enough, we must do.”
3. Anne Frank
“How wonderful that no one need wait a single moment to improve the world.”
4. Mother Teresa
“We can do no great things – only small things with great love.”
5. Margaret Mead
“Never believe that a few caring people can't change the world. For, indeed, that's all who ever have.”
6. Robert F. Kennedy
“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.”
7. Mahatma Gandhi
“We must become the change we want to see in the world.”
8. Charles Dickens
“Come out into the world about you, be it either wide or limited. Sympathize, not in thought only, but in action, with all about you. Make yourself known and felt for something that would be loved and missed, in twenty thousand little ways, if you were to die; then your life will be a happy one, believe me.”
9. Ralph Waldo Emerson
“The purpose of life is not to be happy. It is to be useful, to be honorable, to be compassionate, to have it make some difference that you have lived and lived well.”
10. William James
“Act as if what you do makes a difference. It does.”
11. Edward Everett Hale
“I am only one; but still I am one. I cannot do everything; but still I can do something; and because I cannot do everything, I will not refuse to do the something that I can do.”