"I conceived of myself in large part as a teacher. There wasn't a great understanding of gender discrimination. People knew that race discrimination was an odious thing, but there were many who thought that all the gender-based differentials in the law operated benignly in women's favor. So my objective was to take the Court step by step to the realization, in Justice Brennan's words, that the pedestal on which some thought women were standing all too often turned out to be a cage."