Over the years I have attended many commencement ceremonies as a parent, occasionally as the speaker and this year, for the first time, as a grandparent. One ceremony that stands out in my mind is when my daughter received her M.D. from Ohio State. It was held in the stadium where in the fall the Buckeyes play before more than 100,000 zealous football fans. The playing field was filled from one goal line to the 50-yard line with graduates in their robes and colorful academic hoods. The commencement speaker was a distinguished chemist who delivered an exceedingly long oration on his academic specialty.