5“For Your Six-Month-Old Grandson”

There is one elementary truth, the knowledge of which gives birth to countless ideas and splendid plans: that the moment one definitely commits oneself and acts, then Providence moves too. All sort of things occur to help one that would never otherwise have occurred.... Whatever you can do or dream you can, begin it. Boldness has genius, power and magic in it. Begin it now.—JOHANN WOLFGANG VON GOETHE

FIVE DAYS A WEEK I trudged to the Peter Bent Brigham Hospital for morning rounds from my cardiovascular research laboratory at the Harvard School of Public Health. I welcomed the brief walk along Binney Street, a tiny private thoroughfare devoid of traffic, cloistered by the somber columned Medical School administration ...

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