The "prophets" were what we would call dissident intellectuals. They provided critical geopolitical analysis, condemned the crimes of the powerful, called for justice and mercy for those who needed help, etc. I wouldn't personally endorse everything they said, any more than I would for critics of power and its crimes today. But rather generally I think they played an honorable role - and suffered accordingly.

Individuals in a university - students, faculty, staff - can choose to become politically engaged, and a free university should foster a climate in which those are natural choices.

Compare mathematics and the political sciences - it's quite striking. In mathematics, in physics, people are concerned with what you say, not with your certification. But in order to speak about social reality, you must have the proper credentials, particularly if you depart from the accepted framework of thinking. Generally speaking, it seems fair to say that the richer the intellectual substance of a field, the less there is a concern for credentials, and the greater is the concern for content.

I was in Mexico City. It's a very pleasant city in many ways. It's vibrant, lively, pretty exciting society, but also depressing in other ways, and sometimes almost hopeless, you know. So it's a combination of vibrancy and, I wouldn't say despair, but hopelessness, you know. Doesn't have to be, but it is. I mean, there is almost no economy.

There is a social responsibility to take care of vulnerable people. It seems that a sensible social responsibility is obligatory education, but also decent education, and that is not happening.

The United States is going to continue to punish Iran because of its defiance.

States are not moral agents, people are, and can impose moral standards on powerful institutions.