"If we don't stand up for children, then we don't stand for much."

"No person has the right to rain on your dreams."

"Never work just for money or for power. They won't save your soul or help you sleep at night."

"Together we can and must fight for justice for our children and protect them from draconian tax cuts and budget choices that threaten their survival, education and preparation for the future. If they are not ready for tomorrow, neither is America."

"I have always loved astronomy, and being an astronomer once lurked in the back of my mind. But I was never good at algebra. In fact, I flunked it twice in high school."

"Self-education is, I firmly believe, the only kind of education there is."

"Education and democracy have the same goal: the fullest possible development of human capabilities."

"I started to make a study of the art of war and revolution and, whilst abroad, underwent a course in military training. If there was to be guerrilla warfare, I wanted to be able to stand and fight with my people and to share the hazards of war with them."