I mean, what else are you going to do with $45 Billion? Build a really big house?<p>I&#x27;ve had the opportunity to rub shoulders with a few billionaires over the past few weeks, and it&#x27;s remarkable how differently they think about money than the people who don&#x27;t have it. Sure, they may buy a nice car (or jet), but after a certain level the only thing you can do with that kind of money is plug it back into something meaningful.<p>Hats off to Zuck and the other people who try to turn their success into something even greater than, well, their success.