When I see millions of women in Afghanistan defying threats from the Taliban and lining up to vote; when I see women in Saudi Arabia defying an absurd ban on female driving; and when I see Tunisian women celebrating the conviction of a group of policemen for a heinous gang rape, I feel more optimistic than I did a few years ago. The misnamed Arab Spring has been a revolution full of disappointments. But I believe it has created an opportunity for traditional forms of authority—including patriarchal authority—to be challenged, and even for the religious justifications for the oppression of women to be questioned.

Yet for that opportunity to be fulfilled, we in the West must provide the right kind of encouragement. Just as the city of Boston was once the cradle of a new ideal of liberty, we need to return to our roots by becoming once again a beacon of free thought and civility for the 21st century. When there is injustice, we need to speak out, not simply with condemnation, but with concrete actions.

One of the best places to do that is in our institutions of higher learning. We need to make our universities temples not of dogmatic orthodoxy, but of truly critical thinking, where all ideas are welcome and where civil debate is encouraged. I’m used to being shouted down on campuses, so I am grateful for the opportunity to address you today. I do not expect all of you to agree with me, but I very much appreciate your willingness to listen.