War is terrorism, magnified a hundred times.

I had always insisted that a good education was a synthesis of book learning and involvement in social action, that each enriched the other. I wanted my students to know that the accumulation of knowledge, while fascinating in itself, is not sufficient as long as so many people in the world have no opportunity to experience that fascination.

I can UNDERSTAND pessimism, but I don't BELIEVE in it. It's not simply a matter of faith, but of historical EVIDENCE. Not overwhelming evidence, just enough to give HOPE, because for hope we don't need certainty, only POSSIBILITY.

To be hopeful in bad times is not just foolishly romantic. It is based on the fact that human history is a history not only of cruelty but also of compassion, sacrifice, courage, kindness.

The power of a bold idea uttered publicly in defiance of dominant opinion cannot be easily measured. Those special people who speak out in such a way as to shake up not only the self-assurance of their enemies, but the complacency of their friends, are precious catalysts for change.

Even if you assume presidents were democratically elected they still have no right to keep secrets from the American people.

Every word you utter to another human being has an effect, but you don't know it. If people begin to understand that change comes about as a result of a million tiny acts that seem totally insignificant, well then, they wouldn't hesitate to take those tiny acts.