"The truth will set you free. But first, it will piss you off." - Gloria Steinem.
"Law and justice are not always the same. When they aren't, destroying the law may be the first step toward changing it." - Gloria Steinem.
"We ask justice, we ask equality, we ask that all the civil and political rights that belong to citizens of the United States, be guaranteed to us and our daughters forever." — Susan B. Anthony, Declaration of Rights for Women, July 1876
"My address is like my shoes. It travels with me. I abide where there is a fight against wrong." — Mother Jones.
I also want to include this one just because its funny:
"If women are supposed to be less rational and more emotional at the beginning of our menstrual cycle when the female hormone is at its lowest level, then why isn't it logical to say that, in those few days, women behave the most like the way men behave all month long?" - Gloria Steinem.
See 1001 Feminist Quotes for more.