Here are a few more quotes...

"He who says it cannot be done should get out of the way of the one who is doing it."
Chinese Proverb

"The future depends on what we do in the present."
Mahatma Gandhi

"If we do not change our direction, we are likely to end up where we are headed."
Ancient Chinese proverb

"The hottest place in Hell is reserved for those who remain neutral in times of great moral conflict."
Martin Luther King, Jr.

"Whatever you do will seem insignificant, but it is very important that you do it."
Gandhi

"Your silence will not protect you"
Audre Lorde

"In Germany they came first for the Communists, and I didn't speak up because I wasn't a Communist. Then they came for the Jews, and I didn't speak up because I wasn't a Jew. Then they came for the trade unionists, and I didn't speak up because I wasn't a trade unionist. Then they came for the Catholics, and I didn't speak up because I was a Protestant. Then they came for me, and by that time no one was left to speak up."
Martin Niemoeller, German Lutheran Pastor (1892-1984)