but i quoted rahm roebling's diaries where he -- his son into the the washington rich because john roeblingliterally worked himself to death. he was on a pond overlooking part of the construction i believe the east side of the bridge and there was a fairy that ran over his foot and he died as a result of accident. washington roebling and his wife eventually oversaw the completion of the bridge which markets 132nd anniversary of the speech. i love the confluence and the serendipity of some interconnections that i made in this book. and one of the things it just naturally happen. i didn't plan it which is a good metaphor for how the free market works. you never know when you embark on some journey some endeavor where it's going to end up. capitalists take risks. accept the responsibility for the failures and they deserve every last iota of credit for the success. [applause] >> a lot of people ask me, well how did you pick how did you decide who to highlight? and it was sort of touching on a string and realizing the connections between what seemed to me very random and disconnected entrepreneu