Thank you for inviting me. It's an honor and I'm coming back to the institute some 40 years after I passed out. So it's truly a joyous occasion to be here with all of you.So my school day used to begin and end with the long bell and I would be waiting for this long bell because then it would be time for me to go home. The rest of the day was spent in avoiding the teacher's eye because she just might ask me a question that I would not know the answer to or maybe she would chuck the duster at me. So the secon ...