What are the principle of feminism?

The basic principle of feminism is that it is a movement created to work towards social, political, monetary and artistic equality between men and women.

Our current social system revolves around 'Patriarchy' - i.e. that men control society, rather than men and women controlling it equally. Feminism works to bring down patriarchy and patriarchal ideas and given women choice to do whatever they want equally with men.

nb: feminists do not work to control men, nor do they hate men, but work for men and women to have equal rights. men may be feminists, too, (and many are) if they wish to support women's rights.