So often, when I’m reaching for a stirring quotation, I wind up with something a man said. (Or, in the case of Gandhi, didn’t say.) You may find the same thing.
If so, and you’d like to redress that imbalance a little, bookmark The Eloquent Woman Index of Famous Women’s Speeches. It’s a collection of speeches by prominent women, from Sojourner Truth to Ursula K. Le Guin, and from Aung Sun Suu Kyi to Lady Gaga. There are 78 so far, with more added regularly. (2016 update: There are a lot more than 78 now!)