ABS:
You can learn some basics about Feminism by reading the article here:
http://en.wikipedia.org/wiki/Feminism
Here are some quotes about feminism:
Feminism - I myself have never known what feminism is. I only know that people call me a feminist whenever I express sentiments that differentiate me from a doormat." -Rebecca West, 1913
"Feminism--the belief that women are full human beings capable of participation and leadership in the full range of human activities--intellectual political, social, sexual, spiritual, and economic." -Pearl Cleage, Deals with the devil, p.28. (New York: Ballantine Books, 1993.)
"Feminism is an assertion that women as a group have been historically disadvantaged relative to men of their race, class, ethnicity, or sexual identity; and a commitment to changing the structures that systemically privilege men over women." Journal of Women's History
"I define a feminist as a self-empowering woman who wishes the same for her sisters. I do not think the term implies a certain sexual orientation, a certain style of dress, or membership in a certain political party. A feminist is merely a woman who refuses to accept the notion that women's power must come through men." -- Erica Jong, Fear of Fifty, p.286
"I define feminist consciousness as the awareness of women that they belong to a subordinate group; that they have suffered wrongs as a group; that their condition of subordination is not natural, but is societally determined; they they must join with other women to remedy these wrongs; and finally, that they must and can provide an alternate vision of societal organization in which women as well as men will enjoy autonomy and self-determination." -- Gerda Lerner, The Creation of Feminist Consciousness, p. 14
Personally, I think the bolded one sums it up well.