"There was danger at times that women might not be judged by the highest standards, but more leniently because of their sex. "She is a remarkably good chemist--for a woman," you might hear a man say. It seemed to me essential, if the ablest young women scholars were to achieve the best work of which they were capable, that they should be held to the most rigorous standards. ...To advance, a woman must do at least as good work as her male colleagues, usually better."