Until 1993, for 16 years I taught international relations at Georgetown University. In the concluding lecture of the year I used to share with my students some personal reflections to help them as they embarked upon their careers. Many were especially grateful for my advice about how to have a successful marriage. In this regard, I have always advised people to heed only marriage advice from those who are happily married. I consider myself especially well qualified as I have been exceedingly happy with my wife Joan for over 30 years. Here is what I told my students.
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