The most interesting thing I have heard him say is how one of their signals was based on data that made absolutely no logical predictive sense for markets but being so it was also unexploited for so long. That also though gives a glimpse of how they are looking at everything data wise.
yeah - but is he happy?
Possibly in my "Top 10 ET posts of the year." 
... or obviously down (when short)..... and the patience for the price to go up.
I love how he talks about how proud he is of the foundation, that the wife started, but adds in, "with my money". He already has so much, and yet has to point out that the wife started the foundation with his money. Sounds like the guy would hate to lose a quarter on the street.
the holy grail is being given the task of laundering billions of pentagon money out into "unnamed" pockets all while maintaining a strait face of having done it legitimately via superior brain power.