Since the troubling testimony before Congress on Dec. 5 by university Presidents Claudine Gay, Liz Magill and Sally Kornbluth, I have been asked several times what I thought my late husband, University of Chicago’s 13th President Robert Zimmer, might have said in response to similar questions. Bob, who died of brain cancer in May, was a staunch advocate of the Chicago Principles and the 1967 Kalven Report and well known for his unremitting support of free speech as a necessary part of the fabric of a rigorous education. Bob’s rejection of rhetorical safe spaces and his refusal to yield to canc…