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D.B. Rubin 609program at Harvard, still using the NSF funding that was again renewed. Agreat and final field change!But my years in CS were good ones too. And the background in CS wasextremely useful in Statistics — for doing my own work and for helping otherPhD students. But an aside about a lesson I learned then: When changingjobs, never admit you know anything about computing or you will never haveany time to yourself! After a couple of years of denying any knowledge aboutcomputers, no one will ask, and furthermore, by then, you will be totallyignorant about anything new and practical in the world of computing, in anycase — at least I was.50.4 My years in statistics as a PhD studentThese were great years, with superb mentoring by senior folks: Fred Mosteller,who taught me about the value of careful, precise writing and about responsibilitiesto the profession; Art Dempster, who continued the lessons aboutscientific thinking I learned earlier, by focusing his statistics on principlesrather than ad hoc procedures; and of course, Bill Cochran, a wonderfullywise and kind person with a fabulous dry sense of humor, who really taughtme what the field of statistics, at least to him, concerned. Also importantwas meeting life-long friends, such as Paul Holland, as a junior faculty member.Also, there were other faculty with whom I became life-long friends, inparticular, Bob Rosenthal, a professor in psychology — we met in a Cochranseminar on experimental design. Bob has great statistical insights, especiallyin design, but did not have the mathematical background to do any “heavylifting”in this direction, but this connection helped to preserve the long-terminterests in psychology. Bob was a mentor in many ways, but one of the mostimportant was how to be a good professor for your students — they deserveaccess to your time and mind and its accumulated wisdom.Another psychology faculty member, whom I met in the summer of 1965and greatly influenced me, was Julian Jaynes from Princeton, who became relativelyfamous for his book “The Origin of Consciousness in the Breakdownof the Bicameral Mind” — a spectacularly interesting person, with whomI became very close during my post-graduate years when I was at ETS (theEducational Testing Services) in Princeton. A bit more, shortly, on his influenceon my thinking about the importance of bridging ideas across disciples.After finishing my graduate work in 1970, I stayed around Harvard Statisticsfor one more year as a faculty member co-teaching with Bob Rosenthalthe “Statistics for Psychologists” course that, ironically, the Social RelationsDepartment wanted me to take five years earlier, thereby driving me out oftheir program! I decided after that year that being a junior faculty member,even in a great department, was not for me. So I ended up accepting a fine