Sal Khan's MIT commencement speech

I know this is tangential to Governmental accounting, but I believe this speech is related to good living, and am including it here.   About halfway through, Sal tells the graduates some words of wisdom to consider in living.   I enjoyed his perceptions about political interactions, night sky, inspiration, and his thought experiment that he concludes with.   http://web.mit.edu/newsoffice/2012/commencement-khan-address-0608.html