Robert P. George is not a passive observer of the proverbial culture wars; he’s been a very active participant. As a Catholic legal scholar and philosopher at Princeton University, he was an influential opponent of Roe v. Wade and same-sex marriage, receiving a Presidential medal from President George W. Bush. George decries the “decadence” of secular culture, and, in 2016, he co-wrote an op-ed declaring Donald Trump “manifestly unfit” to serve as President. Although George disagrees with the Administration’s tactics to change universities’ policies by punishment, he agrees with its contention that campuses have become hotbeds of leftism that stifle debate. He regards this not as a particular evil of the left but as “human nature”: “If conservatives had the kind of monopoly that liberals had,” George tells David Remnick, “I suspect we’d have the same situation, but just in reverse.” His recent book, “Seeking Truth and Speaking Truth: Law and Morality in Our Cultural Moment,” tries to chart a course back toward civil, functioning debate in a polarized society. “I encourage my students to take courses from people who disagree with me, like Cornel West and Peter Singer,” the latter of whom is a controversial philosopher of ethics. “Cornel and I teach together for this same reason. Peter invites his students to take my courses. That’s the way it should be.”