It should come as no surprise that a conference about disagreement began with a disagreement. President Alan M. Garber opened the thirteenth annual Harvard Initiative for Learning and Teaching conference with a filmed message. “When we look for ideas about how to teach well and how to tolerate disagreement, I don’t know that we need new gadgets. Leaders of various Harvard schools spoke about the challenges to free expression on their respective campuses. As Harvard administrators and faculty members continue to ponder dialogue across differences, the major question remains: will students embrace those efforts?