January 2, 1986
Dear Ed:
You taught me henodynamics.  You taught me research methodology. You taught me golf (for which I forgive you!).  But most importantly you taught me about professional integrity, scientific discipline and critical thinking. These were lessons I hope I have been able to retain in my own medical career.
Our years together in Washington were rich with ideas.  That environment for clinical research probably cannot be duplicated in the present era of corporate, cost-accounting medicine.  To be intellectually excited by what one is doing and have fun at the same time is the highest gratification one can seek.  I think you have always successfully applied that principle to your professional life.
As you look back (and I know you usually would rather look forward) at the time of your retirement, I hope you will reflect with pride not only on the fundamental and critically important contributions you have made to medical science but also on the impact you have had on those you have trained.  This trainee will always remember with affection and respect his valued mentor.
I hope your post-retirement days will be as full of challenges and satisfactions as you want them to be.
With best wishes also from Syma , Cynthia, Lauren and Joshua.
Sincerely,
Jay N. Cohn, M.D.
Professor of Medicine
Head, Cardiovascular Division