Nice memorial articles on Gerhard Hochschild (1915–2010), one of the giants of our trade. Here is an interesting episode:
At some point in the 1970s Gerhard was put on the committee to select the new instructors at Berkeley and given literature from the administration for guidance, which included affirmative action policies. He called the dean and told him he couldn’t do this because ethnic and racial criteria have no place in mathematics. Having seen Nazis up close and personal and having had the difference between “Jewish” and “Aryan” mathematics made clear to him, he could not, in turn, consider racial/ethnic criteria in selecting new instructors. The dean then argued that there is a difference between “negative racism”, which the Nazis practiced, and the current policy, whose purpose was to have a positive outcome. Gerhard did not regard this as adequate and resigned from the committee.