[When comparing the sale of Manhattan to the Dutchman Peter Minuit for $24 to the present value of $24 invested at 9% since 1626; was it better to invest the money or would your rather have all of Manhattan today?] "Those of you who thought that buying Manhattan real estate was better... you were wrong. By a long shot."
[When explaining the derivation of the NPV of a constant payment in perpetuity, he reduced an infinite series expansion with a neat trick.] "I have subtracted the first equation from the second. Now every other term cancels with the one below it. (Long pause, followed by this phrase, delivered completely deadpan) How convenient."
