As I walked home after the opera, I found myself wondering if the most famous opera fan in America — Supreme Court Justice Ruth Bader Ginsburg, aka Notorious RBG — had been there, too. She is often seen at the opera, and I hope she was. Just as Dmitri was singing his heart out for us opera lovers, she took her place at the opening of the Court’s October term. She is 82, and she doesn’t need the money or the fame either. Yet nothing raises her hackles like the suggestion that it is time for her to step down from her work, as the Court’s oldest Justice and often the most senior member of the liberal bloc. She is going to use what she has left of life — and I hope it is a long time — in the way she always has, thinking and arguing and judging and writing opinions or dissents. In recent years, she is also playing a role as an inspiration to a whole new generation of women and girls following her delicious Tumblr page on the Internet.