"All women are subtle in exaggerating their weaknesses; they are inventive when it comes to weaknesses in order to appear as utterly fragile ornaments who are hurt even by a speck of dust. Their existence is supposed to make men feel clumsy, and guilty on that score. Thus they defend themselves against the strong and "the law of the jungle."" - Friedrich Nietzsche
"Feminism directly confronts the idea that one person or set of people [has] the right to impose definitions of reality on others." - Liz Stanley and Sue Wise
Of course, the strategy most people use is to accept those definitions when it suits them, contest them when it doesn't and impose their own definitions when that will suit them the best.
"When a man opens a door for a woman, because society expects it, it's called chivalry.
When a woman does the cooking, because society expects it, it's called patriarchy."
"When a man has sex with a woman who is under the influence of alcohol and can't remember giving consent, it's called date rape.
When a woman has sex with a man who is under the influence of alcohol and can't remember giving consent, he has no basis for complaint."